ICPCM-2021(Abstract book)

About NIT Rourkela National Institute of Technology Rourkela (NIT Rourkela), formerly known as Regional Engineering College Rourkela (REC Rourkela) is an institute of higher learning for engineering and technology, funded by the Government of India and located in the steel city of Rourkela, Odisha, India. The institute was established as Regional Engineering College (REC) Rourkela on 15 August 1961, and its foundation stone was laid by the first Prime Minister of India, Jawaharlal Nehru. It was granted autonomy in 2002 and now functions independently under the Ministry of Human Resource Development (MHRD) as one of the National Institutes of Technology. The Institute has been modernized by two foreign collaborative funding agencies i.e. the Material theme in the Materials and Metallurgical Engineering department under Indo- U.K. REC project and the Computer Science and Electronics streams under World Bank cum Swiss Development Corporation IMPACT project. With 21 departments awarding graduate and post graduate degrees including Ph.D. in Engineering, Science, Planning and Architecture, Management, and Humanities, NIT Rourkela is one of the prestigious institutes in the country. NIT Rourkela is presently ranked the 2nd best NIT and 12th nationwide (including IITs) by the MHRD. NIT Rourkela was also ranked 601-800 in the world by the Times Higher Education World University Rankings of 2018 and 126 in Asia. NIT Rourkela is a well-known technical institute of national importance serving as a knowledge hub to the nation. The campus of the institute spread over an area of 262 hectares of land is surrounded by scenic hills providing a spectacular rejuvenating atmosphere, which is very conducive for study and research. The well maintained green campus of the Institute provides accommodation to all students, faculties and staffs. The campus has all the amenities for developing personal, social and academic skills of young people. The greeneries and flowers in the campus further make the stay very pleasant and enjoyable.

About Department of Metallurgical and Materials Engineering Established in 1964, the Department has emerged as a powerhouse for academics, scientific research, and cutting-edge technologies. With time, the department grew noticeably and established new areas of research and teaching in materials engineering, while retaining its strength in traditional areas of metallurgical engineering. The department is actively involved in fundamental research in diversified fields like steel technology, advanced manufacturing processes, alloy designing, nanotechnology, composites and computational materials. The alumni of the department hold strong positions in many prestigious organizations over the world. The department attracts highly qualified faculties and bright students from the entire nation. The well-developed infrastructure, diversified expertise of the faculties and incredibly talented students have placed the department in the global forum. The graduates from the department are well-placed in esteemed industries and institutions. The department has a history of producing highly ambitious students motivated for higher education in India and overseas. The department is actively involved in research activities in the front line areas of metallurgical and materials engineering in collaboration with reputed R&D organizations and industries throughout the country. The research wing of the department is strongly supported by various public and private organizations. At present, various research projects are being run in the department by external sponsoring agencies like Department of Science and Technology (DST), Council of Scientific and Industrial Research (CSIR), Naval Research Board (NRB), Defence Research and Development Organisation (DRDO), Board of Research in Nuclear Sciences (BRNS), National Aluminum Company (NALCO). Recently TATA Steels has joined hands together with the department for active collaborative industrial research on FRP Composites.

About the conference ICPCM 2021 The Department of Metallurgical and Materials Engineering, National Institute of Technology Rourkela is going to organize the 3rd International Conference on Processing and Characterization of Materials (ICPCM–2021) and 11thNational Conference on Processing and Characterization of Materials (NCPCM–2021) during 7th-8thDecember 2021 after successful completion of earlier conferences in this series. “Processing and Characterization of Materials” is a foremost topic of interest for most of the researchers in the scientific community. Advanced processing and characterization techniques make it possible to de-velop many novel materials for different applications including nuclear reactor, aerospace, defense and other structural sectors. Technological advancement urges novel design of fabrication strategy, compre-hension of structure-property relationship for the sustainability in application of the components. The ob-jective of the conference is to highlight all the technological advancement in the area of processing and characterization of materials. The conference is expected to attract the researchers, scientists, practicing engineers from various R& D organizations, academic institutions, and industries at a single platform. The interdisciplinary approach of the conference may allow the participants to look beyond their areas of research and expertise. The organizers of the conference contacted distinguished researchers to deliver keynote and invited lectures on processing and characterization of materials. The conference is expected to be a platform for young researchers of the globe to share their research, network with eminent peers of diversified fields, industry-institute collaboration. Senior practicing engineers, established researchers, and faculty members will also get an opportunity to share their knowledge and information.

Organizing Committee PATRON: Prof. Simanchalo Panigrahi, Director, NIT Rourkela Chairman: Prof. Anindya Basu, HOD Convenor: Prof. Archana Mallik Co-Convenor: Prof. Kumud Kant Mehta Treasurer: Prof. Krishna Dutta Members Prof. Bankim Chandra Ray Prof. Subash Chandra Mishra Prof. Sudipta Sen Prof. Mithilesh Kumar Prof. Debasis Chaira Prof. Santosh Kumar Sahoo Prof. Syed Nasimul Alam Prof. Krishna Dutta Prof. Natraj Yedla Prof. Snehanshu Pal Prof. Ajit Behera

International Advisory Committee Prof. Samir Aouadi, University of North Texas (UNT), USA Prof. Rebholz Claus, University of Cyprus (UCY), Cyprus Prof. Umar Es-Said, Loyola Marymount University, USA Dr. M. V. Reddy, Institute of Research Hydro, Canada Prof. Noe Alba, Universidad Autónoma de Ciudad Juárez, Mexico Prof. Leandro Bolzoni, University of Waikato, New Zealand Prof. Chaofang Dong, University of Science and Technology, Beijing Prof. Yong-Cheng Lin, Central South University, China Prof. T. K. Sen, Curtin University, PERTH Australia Prof. G. Prusty, UNSW Sydney Australia Prof. D. D. Macdonald, University of California, Berkeley Prof. S. M. A. Shibli, University of Kerala, Kerala Prof. KallolMondal, Professor, IIT, Kanpur Prof. B. B. Panigrahi, IIT Hyderabad Prof. R. K. Mandal, IIT, BHU, Varanasi Dr. A. K. Singh, DMRL, DRDO, Hyderabad Shri Sanjay Chawla, Director General, AQA, MoD, New Delhi Prof. M. Kamaraj, IIT, Madras Prof. J. Bhatt, VNIT Nagpur Prof. S. Mohan, IIT BHU, Varanasi Prof. S. Das, NIT Raipur Prof. C. Srivastava, IISc Bangalore Prof. S. R. Bakshi, IIT Madras Prof. S. C. Pattnaik, IGIT Sarang Prof. S. Gollapudi, IIT Bhubaneswar Prof. T. K. Kundu, IIT Kharagpur

Message

The Department of Metallurgical and Materials Engineering, National Institute Technology

Rourkela is a pioneer in many scholastic activities. The processing and characterization of

engineering materials have been a traditional strength of the department. The department has

accumulated a significant amount of knowledge and experience over a wide variety of fields, from

conventional metals and alloys to composite materials, nanomaterials and biomaterials. The

Department is organizing the 3rd International Conference on Processing and Characterization of

Materials (ICPCM 2021) during 7-8 December 2021. Industry professionals and academic

researchers from around the country will congregate during the evenyt. It is my personal honour

to welcome the participants to our beautiful campus. I am sure the experience of the delegates will

be fulfilling both academically and socially. I also record my sincere appreciation of hard work

put in by the entire team of the Department of Metallurgical and Materials Engineering.

The desire of material scientists to understand the invisible material world is unending. God gifted

eyes have limited resolution and magnification. When biological eyes remain unreachable,

probing by other indirect agents as excitations like electron beams, X -ray photons visible

photons, neutron beams, ionized radiations are coming to our rescue for noticing the invisible

world. Optical microscopy partially opened the gate of invisible material world by inventing first

optical microscope. However, with rational thinking ie “seeing is believing”, man realized that

there must be an exciting & invisible world, which is beyond the perception of not only human

eyes, but also optical microscope. This paved the way to electron microscope (EM). The electron

microscopy uses electron as an excitation source and that to its wave – nature of unthinkable

smaller wavelength.

Prof Simanchalo Panigrahi Patron, ICPCM 2021

Director NIT Rourkela

De Broglie was his inventory father. Unlike optical lens, here electromagnetic lenses are used for

the focus. Two variants are Scanning electron microscope (SEM) and transmission electron

microscope (TEM). Compositional analysis by EDX made SEM versatile and non- destructive

too. The interaction of the electron beam with sample produces characteristics X- ray of that

specimen. On comparing the energy and intensity of this characteristics X- ray, one gets elemental

composition of the sample. Race remains unending from seeing to touching or playing with the

atom as “touching is the feeling”. Taking wave nature of electron and the concept of quantum

tunneling, Scanning tunneling microscope (STM) could help in positioning ie playing with atom.

It is further supported by Atomic force microscopy (AFM) which is 3D force sensor works by

cantilever. Non -vacuum & non- destructive characterizations serve as eyes for nanostructures.

Balance between repulsive and attractive force with contact, non contact and tapping features

helps atomic resolution and allow even DNA helix to be seen.

Quest of materials scientists to use X -ray as an exciting source gave rise XRD. It is a technique

for material characterization on the atomic scale for both crystalline and non- crystalline

materials. Bragg, with his well known equation 2dsinθ = nλ, claims as an inventory father of this

technique. XRD pattern is the finger print of the materials ie each material has its own XRD

pattern. It will give information about structure, particle size, phase purity, lattice parameter,

impurities, stress and crystalline. X-ray photoelectron spectroscopy (XPS) is a quantitative

spectroscopic technique that measures the elemental composition, chemical state, empirical

formula, and electronic state of the elements that exist within a material. XPS works on the

principle of photoelectric effect in which soft X-Rays are used as exciting photons. XPS spectra

are obtained by irradiating a material with a monochromatic beam of X-rays while simultaneously

measuring the kinetic energy (KE) and number of electrons that escape from the top 1 to 10 nm of

the material being analyzed. XPS as a tool in the study of nano structured 2D material and in

commercial PET surfaces in biotechnological applications and others. X- Ray fluorescence

spectrometry (XRF) serves as another lens to invisible material world. The electron is ejected

from the K shell by incident quantum of X- ray Photon resulting the emission of X Ray quanta,

which is the characteristics of the atom itself. On analysis of fluorescent X -ray various element

present in the sample can be determined.

The molecular structure or functional group is like the skeleton of a material. FTIR spectrum is

obtained due to absorption of electromagnetic radiation of certain frequency and this is correlated

to the molecular vibration of the chemical bonds. FTIR spectra gives the presence of aromatic

rings, functional group, location and orientation of the molecules within the structure. Photolumi-

nescence (PL) is the spontaneous emission of light from any materials as a result of the absorption

of photon. It may either Florescence or Phosphorescence depending on the time period of

emission is less than 10 -8 sec or more. It is due to energy transfer from radiation to the electron

of that material leading to excited state and further coming to the ground state by either by direct

transition in case of Florescence and through meta-stable state in case of Phosphorescence,

respectively. Raman spectroscopy is a versatile experimental tool to probe the local structural

changes such as lattice distortions and octahedral rotations through lattice excitations and it can

also probe magnetic excitations i.e magnons and even their interactions as well i.e. magnon-

phonon coupling. Hence, it is an ideal tool to investigate the spin-phonon (spin-lattice coupling)

and electron phonon coupling in a crystal. This technique is based on the inelastic scattering of

light with wavelength in the visible spectrum i.e. 8000-4000Å.

The thirst for deeper and deeper understanding remains unending. Many more characterization

technique more specific to investigations are in pipeline. Wish a grand success to the conference

ICPCM 2021.

Prof Simanchalo Panigrahi Director NIT Rourkela

Message

On behalf of the ICPCM 2021 organizing committee and the Department of Metallurgical and

Materials Engineering, National Institute of Technology Rourkela, I welcome you to the 3rd

International Conference on Processing and Characterization of Materials (ICPCM 2021) and

the 11th version of this conference series. The department, which is a 68-year-old child always

wanted to grow with others with a belief in knowledge sharing and assimilation. This conference

is one such initiative to provide a platform to the academician, industry and R & D experts to

share knowledge for the advancement of research in the field of Metallurgical and Materials

Engineering and we are happy to get a mammoth response this year too, despite sluggish progress

in research activities around the world. Glimpses of the participation and diversification of the

conference in terms of research fields and author locations can be seen from this abstract book.

Let us have a fruitful time during this 2 days event through interactive sessions and I am eagerly

waiting to see the output of this conference in terms of the final full-length publications in the

intended books/journals.

Prof. Anindya Basu Professor and Head Department of Metallurgical and Materials Engg

Prof. Anindya Basu Chairman, ICPCM 2021

Professor and Head Department of Metallurgical and Materials Engg.

Message

It gives me an immense pleasure to welcome you all to the 3rd International Conference on

Processing and Characterization of Materials (ICPCM 2021) and 11th National Conference on

Processing and Characterization of Materials organized by the Department of Metallurgical and

Materials Engineering, National Institute of Technology Rourkela from 07-08 December 2021.

The advanced processing of materials and their subsequent characterization are now-a-days

gaining attention owing to the advancement of technology and need of high-quality materials for

critical applications. The purpose of this conference is to bring recent developments in materials

processing and characterization in the Indian context. The conference will provide a platform for

the interaction and exchange of ideas among the scientists, practicing engineers and young

researchers from various academic institutions, research laboratories and industries from all over

India engaged in frontiers of processing and characterization of conventional as well as advanced

materials. It is envisaged that the participants will gain a complete knowledge in the above-

mentioned areas from the conference, which will help the young researchers to pursue high-

quality research and the practicing engineers to implement the knowledge in industries.

I would like to express my sincere gratitude to all the participants and delegates for attending the ICPCM 2021.

Prof. Archana Mallik Associate Professor Department of Metallurgical and Materials Engg

Prof. Archana Mallik

Convener, ICPCM 2021

Message

I feel it a privilege and colossal delight to welcome you all to the 3rd International Conference on

Processing and Characterization of Materials (ICPCM 2021) and 11th National Conference on

Processing and Characterization of Materials organized by the Department of Metallurgical and

Materials Engineering, National Institute of Technology Rourkela from 07-08, December 2021.

It is the demand of time to pursue excellence and relevance in all aspects of advance processing of

materials and their characterization. Promotion of advance processing, their characterization and

inclusion of digitization in all the activities are the key elements in the pursuit of excellence. The

objective of the conference is to bring all the researchers working in the field of materials

processing and characterization in one common platform and fetch the recent advancements on a

universal forum for extensive discussion. It will be a preeminent forum where the young

researchers, scientists, practicing engineers, shop floor workers from industries and faculties from

academic institutions from all over India will exchange their ideas and knowledge. A number of

renowned researchers, scientists and faculties have given their kind consent for delivering keynote

talk in this conference which will be fruitful for the all the participants. All the participants are

encouraged to take part in technical discussions, extract the most valuable information from the

eminent speakers and enhance the knowledge base.

I wish to convey my honest thankfulness to all the participants and delegates, who will be

attending the conference (ICPCM 2021) on 7th and 8th of December, 2021.

Prof. Kumud Kant Mehta Assistant Professor Department of Metallurgical and Materials Engg

Dr. Kumud Kant Mehta Co-Convener, ICPCM 2021

Department of Metallurgical and Materials Engineering National Institute of Technology, Rourkela

CONTENTS

Sl. No. Abstract ID Name Abstract Title Page Number

1 ICPCM21/A/01 Tapasmini Sahoo

Detection of Grains in Aluminium

Metal Matrix Composites using

Image Fusion

01

2 ICPCM21/A/04 Nidhi Khattar Study of thermal decomposition

parameters of UHMWPE sheet 01

3 ICPCM21/A/06 Bappa Mondal

Influence of different eco-friendly

dielectric on EDM performance - a

brief review

02

4 ICPCM21/A/07 Gorti Janardhan Failure behaviour of spot-welds on

automotive steel sheets 02

5 ICPCM21/A/08 Sweta Rani

Biswal

Self-lubricating composite: A new

generation composite for efficient

tribological application

03

6 ICPCM21/A/09 Ravi Shankar

Rai

Development of cuo nanostructures

using one step chemical bath

deposition under microwave heating

and their characterizations

04

7 ICPCM21/A/10 Sambhab Dan

First principle study of defect induced

band structure in Cu substituted

Bi2Te3 topological insulator

04

8 ICPCM21/A/12 Anshuman Das

Comparative assessments of

machining forces in 3D printed

polymer composite during milling

operation using two coated carbide

end mills

05

9 ICPCM21/A/14 Priti Shikha

Nanda

The effect of reinforcement

composition and sintering

temperature on microstructure and

properties of Al-sic-fly ash composite

05

10 ICPCM21/A/15 Rutuparna

Pattanaik

Development of Al-sic-tio2 hybrid

composite using powder metallurgy

route and the influence of tio2

variation on microstructure and

mechanical properties

06

11 ICPCM21/A/16 Jagadish Parida

Comparison Study on Wear and

Corrosion Behaviour of Plasma

Melted and Sand Casted LM0 Alloy

07

12 ICPCM21/A/18 N Rajesh

Prediction of Kerf width and Taper

angle in Laser drilling of S32750

Using Integrated ANFIS

07

13 ICPCM21/A/20 Soumyajit Roy

Increase in life of Snorkel and Lower

Vessel of RH-OB of SMS-II at

Rourkela Steel Plant, to increase

08


productivity and achieving lower

operating cost

14 ICPCM21/A/21 Saroj Kumar

Sahu

Effect of addition of 3%Al2O3 on

mechanical and microstructural

properties in Al-16Si hypereutectic

alloys with pouring temperature

08

15 ICPCM21/A/26 Irfan Mushtaq

Wani

Creep behavior of nanocrystalline

materials: Implications of thermal

stability

09

16 ICPCM21/A/27 Ayan Banerjee

An Investigation on Machinability of

Nitronic 50 in Dry Environment using

Uncoated WC-Co Tool Inserts

09

17 ICPCM21/A/28 B N V S Ganesh

Gupta K

Mechanical responses of GFRP

composites through polymer

hybridization technique

10

18 ICPCM21/A/29 Suresh Gudipudi

Effect of traverse speed and tool

geometry on microstructure and

mechanical properties of friction stir

welded aluminum alloy

10

19 ICPCM21/A/30 Ritick Ranjan

Srichandanray

Friction stir welding of 6xxx and 7xxx

series aluminium alloys: a review 11

20 ICPCM21/A/31 Deepak Patel

Simulation Based Optimization and

Validation of Mechanical Stirring

Parameters to Produce Al-Sn Alloys

by Direct Chill Casting

11

21 ICPCM21/A/36 Ipsita Swain

Micro-mesoporous Al2O3-sico

hybrids from polymer derived

ceramic route for adsorption studies

12

22 ICPCM21/A/37 Manas Ranjan

Panda

Experimental and Microstructural

Analysis on Effect of Process

Parameters in EDM of Monel 400

Super Alloy Using RSM

12

23 ICPCM21/A/38 Bhagyashree Bal

Effect of oxide and sulphide flux on

weld characteristics of duplex

stainless steel

13

24 ICPCM21/A/39 Sasmita Kar Ballistic performance of green woven

fabrics –A short review 13

25 ICPCM21/A/41 C. Sarala Rubi

Optimization of process variables in

drilling of LM6 / fly ash composites

using Grey-Taguchi Method

14

26 ICPCM21/A/42 K V J Bhargav

Generation of microchannels on

PMMA using an in-house fabricated

µ-ECDM system

14

27 ICPCM21/A/43 Venkatesan D An investigation on the effect of

spheroidization annealing on low 15


cycle fatigue (LCF) characteristics of

low and medium carbon steels cold

forged components manufactured

using the raw material produced

through liquid forging route.

28 ICPCM21/A/45 Binayak Das

Study of stochastic cutting force by

using different type of advanced

coated tools with AISI52100 bearing

steel

16

29 ICPCM21/A/47 Dilip Kumar

Bagal

Numerical investigation and

parametric optimization of micro-

drilling using recent metaheuristic

approaches

16

30 ICPCM21/A/48 Ashutosh

Satpathy

An Overview of Recent End Milling

Operation on mmcs 17

31 ICPCM21/A/49 Arka Ghosh

Properties, application and synthesis

of two dimensional (2D) hexagonal

boron nitride (hbn)

17

32 ICPCM21/A/50 Santha Rao

Dakarapu

Effect of Nano particle on mechanical

properties of activated tungsten gas

welding of Austenite stainless steels

306L

18

33 ICPCM21/A/51

Priyanka

Priyadarsini

Singh

Ultrasonic processing of effective

graded acoustic material 18

34 ICPCM21/A/52 Praveen Kumar

Loharkar

Evaluation of characteristics for

microwave-assisted polymer coating

of steel substrate

19

35 ICPCM21/A/53 Prasenjit Biswas

Production and characterization of Al-

Cu Binary Alloy produced by using

Novel Continuous Casting Process

20

36 ICPCM21/A/55 Santosh Kumar

Tripathy

Parametric optimizination of

machining parameter in CNC turning

of aluminum based hybrid metal

matrix composites

20

37 ICPCM21/A/56 Krushnapriya

Jena

The Microstructural-Properties

improvement by manganese addition

in Al-14Si Hypereutectic alloy

21

38 ICPCM21/A/57 Kiran Kumar

Sahoo

Influence of RF sputtering pressure

and substrate temperature on

the structural, morphological, and

electrical properties of Ta2O5

dielectric thin films

21

39 ICPCM21/B/01 Sujata Mishra

Prospects of ionic liquids in the

recovery of critical metals using

liquid-liquid extraction technique

22



Applications of ionic liquids in

solvent extraction of optically active

metals Gallium and Indium-An

overview

22


Green solvents for extractive

separation of Pb(II) and Hg(II) from

various resources-An update

23

42 ICPCM21/B/08 Rishi Sharma

The application of microwave and

infrared drying in agglomeration

plants of iron ore briquette

24

43 ICPCM21/C/01 Pundrikaksha

Upadhyay

Electro-galvanization of zinc and

zinc-nickel onto mild steel for

improved corrosion resistance

24

44 ICPCM21/C/03 Priti Singh

Single step electrodeposition of

highly cuinse2 thin films with rich

Indium selenide surface over layer:

effect of surfactant

25

45 ICPCM21/C/07 J Udaya Prakash

Effect of Zircoat-M coating on

SS304L for designing high

temperature process chamber in

Selective Laser Sintering

25

46 ICPCM21/C/08 Pyla Kaushik Raj

Characterization and mechanical

performance of TIG cladded in-situ

tic-tib2 composite coating fabricated

on AISI304 stainless stee

26

47 ICPCM21/C/10 Gyanadeep

Mallik

Electrical Properties of cuo

Nanoflakes/Au Schottky Junction

Under Photo Excitation

26

48 ICPCM21/C/11 Rinmayee

Praharaj

Growth mechanism of aligned porous

oxide layers on titanium by

anodization in electrolyte containing

Cl-

27

49 ICPCM21/C/12 Bijay Kumar

Karali

An Efficient Means for the Synthesis

of Reinforced Hydroxyapatite

Nanocomposite: Electrodeposition

Route

27

50 ICPCM21/C/13 Abhishek Sinha

An Experimental study on effect of

titanium oxide coated heater substrate

on pool boiling enhancement

28

51 ICPCM21/C/15 Prasoon Kumar

Nanomaterials decoration on

commercial cotton wound dressing

bandages for pain and infection

management

29

52 ICPCM21/C/16 Aftab Alam

Cadmium sulphide thin films

deposition and characterization for

device applications

29


53 ICPCM21/C/17 Rakesh Roshan Application of thermal spray coating

in an aerospace industry: A Review 30

54 ICPCM21/D/01 Ambadas

Dissimilar joining of Titanium alloy

to pure Aluminum using Friction Stir

Welding (FSW) Process

31

55 ICPCM21/D/03 Prakash. P

Influence of thermo-mechanical

treatment in Austenitic and Ferritic

field condition on microstructural and

mechanical properties of Reduced

Activation Ferritic-Martensitic steel

31

56 ICPCM21/D/04 Sarojrani

Pattnaik

An effective way of reducing the wax

pattern shrinkage to improve the

dimensional accuracy of the

investment castings

32

57 ICPCM21/E/01 Janaki Dehury

Analysis of tribological and

mechanical characteristics of date

palm petiole/epoxy composites

32

58 ICPCM21/E/02 Dhirendra

Kumar Sharma

Synthesis and characterization of

undoped and Er-doped zno

nanostructures prepared by a chemical

method

33

59 ICPCM21/E/03 Sonia Rani Stopping force of 0.2-3.0 mev/n

heavy ions in elemental materials 33

60 ICPCM21/E/05 Pushpendra

Kumar Dwivedi

Ratcheting Fatigue Life Prediction of

High Strength Low Alloy Steel Using

an Energy-Based Approach

34

61 ICPCM21/E/06 Sujata Mohanty

Structural, optical and multiferroic

behavior of transition metal based

double perovskite oxides

35

62 ICPCM21/E/07 R Rajan

Development and Analysis of Friction

Characteristics of Coir Fiber Added

Organic Brake Pad Composite

35

63 ICPCM21/E/08 Hari Prasad M

Study on influence of reinforcements

on different properties of Aluminium

Hybrid Metal Matrix Composites

36

64 ICPCM21/E/11 Bappa Das

Fabrication of nano-La2O3 dispersed

W-Zr alloy by mechanical alloying

and conventional sintering

36

65 ICPCM21/E/12 S.Praveen

Kumar

Dissimilar welding between AISI

2205 duplex and AISI 321 austenitic

stainless steel using GTAW process

37

66 ICPCM21/E/17 Subha Sanket

Panda

Investigating the Mechanical

Properties of Ti-Ni-Fe based

Intermetallic alloys at various length

scales

37


67 ICPCM21/E/18 Swastik Soni

Double shear performance of the

hybrid aluminum metal matrix

composite Al6063-sic/Al2O3

fabricated through electromagnetic

stir casting process

38

68 ICPCM21/E/19 Binod Bihari

Palei

Synthesis of Graphene Decorated

Silicon Nano Composites and Their

Characterizations

38

69 ICPCM21/E/20 Prakash Chandra

Sahoo

Reduced Graphene Oxide Synthesis

by Dry Planetary Ball Milling

Followed by Arc Plasma Treatment of

High Pure Graphite

39

70 ICPCM21/E/21 Jagadish Mallick Influence of precious slag ball as fine

aggregarte in construction 39

71 ICPCM21/E/23 Laxmi Narayan

Rout

Ceramic hybrid composites for heat

dissipative aerospace materials 40

72 ICPCM21/E/24 Sandeep Kumar

Study the effect of welding voltage on

hardness and tensile strength of MIG

welded AISI-304 stainless steel using

fuzzy logic technique

40

73 ICPCM21/E/25 Lasyamayee

Garanayak

A Review on Geopolymer Concrete

as Sustainability Material Using

Different Industrial Wastes

41

74 ICPCM21/E/26 Suresh Gudipudi

Experimental investigation on

sinterabilty and densification

behavior for high porous Al- X% B4C

powder synthesized composites

41

75 ICPCM21/E/27 Prabina Kumar

Patnaik

Experimental Analysis and Multi-

Objective Optimization of

electrodischarge Machining via Grey-

Taguchi, TOPSIS-Taguchi and PSI-

Taguchi Methods

42

76 ICPCM21/E/28 Mamata Das

Antibacterial efficacy of

carboxymethyl cellulose/chitosan

nanocomposites reinforced with

graphene oxide and tio2 nanoparticles

42

77 ICPCM21/E/29 Santosh Kumar

Sahu

Experimental Instigation on Vibration

Assisted Electro Discharge

Machining of Inconel-718

43

78 ICPCM21/E/30 Arpita Sahoo

Preparation and Characterization of

the Activated Carbon from

Pterospermum acerifolium fruits

43

79 ICPCM21/E/31 Ved Prakash

Potential of Abaca Natural fiber as

Reinforcement in Polymer Composite

and Characterization Assessment

44


80 ICPCM21/E/32 Pooja Dwivedi

Effect of Cu-doping and Thermal

Treatment on Antibacterial Potential

of zns Nanoparticles

44

81 ICPCM21/E/33 B N V S Ganesh

Gupta K

The combined effect of loading rate

and cryogenic treatment on the

mechanical response of glass fiber

reinforced/epoxy composites

45

82 ICPCM21/E/34 Santosh Kumar

Sahu

Experimental Investigation on MRR

of K-90 Alumina Ceramics with

Zircon Sand by Abrasives Jet

Machining

46

83 ICPCM21/E/35 Ganeswar Sahu

Influence of ionic liquid on the

dielectric relaxation behavior of

SWCNT reinforced poly(vinyl

alcohol) based nanocomposites

46

84 ICPCM21/E/38 Debayan Mondal

Optimization of Electrical Process

Parameters of WEDM on ECAP

Al7075 alloys considering Radial

Overcut (ROC) as Output response.

47

85 ICPCM21/E/39 Rashmisikha

Behera

An experimental study on evaluation

of fiber reinforced fly ash stabilized

black cotton soil as a sustainable

subgrade material

47

86 ICPCM21/E/40 Rashmi Rekha

Negi

Comparative studies of BT, BFN and

0.94BT-0.06BFN ceramics

synthesized through sol-gel route

48

87 ICPCM21/E/41 Manoj Kumar

Influence of Filler in Water

Absorption Behaviour of Glass Fibre

Reinforced Polymer Composite: A

Comparative Analysis

49

88 ICPCM21/E/43 Patibandla

Manmadharao

Friction and Wear Studies of Polymer

Nano Composites – A Review 49

89 ICPCM21/E/44 Rajashree

Paikaray

Structure and Optical properties of

Ca0.96WO4:Pr0.04 powders 49

90 ICPCM21/E/45 Sandip Kumar

Nayak

Tribological Evaluation of Marble

dust Filled Polyester Composites

using an Integrated Fuzzy Logic and

Response Surface Method Approach

50

91 ICPCM21/E/46 Sibabrata

Mohanty

Characterization of tensile and impact

properties of fabricated alsi10mg by

SLM Technique

50

92 ICPCM21/E/47 Sibabrata

Mohanty

Optimize the effect of Process

Parameters While Turning AL Based

MMC Reinforced with agro waste in

CNC Machine

51


93 ICPCM21/E/48 Anupama Pati

Structural, Dielectric and Magnetic

Studies of Modified Strontium

Hexaferrite

52

94 ICPCM21/E/49 Soumyajit Das Weld Interface Characterization in

Ultrasonic Welding of Al-cuni Sheets 52

95 ICPCM21/E/50 Payala Sahoo Enhanced Dielectric and Optical

Properties in Al-Substituted kbife2o5 53

96 ICPCM21/E/51 Debabrata Panda

Synthesis of silica-cellulose hybrid

aerogels for thermal and acoustic

insulation applications

53

97 ICPCM21/E/52 Anshuman Patra

Microstructure and mechanical

properties of mechanically alloyed

and conventionally sintered Nb-W

and Nb-Mo alloys

54

98 ICPCM21/E/53 Swetapadma

Panda

Microhardness Variability

Assessment of Copper-Grit-Concrete

(CGC)

55

99 ICPCM21/E/55 Pratima Minz

Synthesis and application of

Activated carbon from Artocarpus

Heterophyllus peel for the removal of

fluoride from aqueous solution

55

100 ICPCM21/E/56 Deepak Kumar

Mohapatra

Effect of glass fibre hybridization on

mechanical properties of kenaf

fibrepolyester composite laminates

56

101 ICPCM21/E/58 Pratishtha

Kushwaha

Antibacterial activity of PVA

functionalized Iron Nanoparticles

synthesized via via co-precipitation

Method

56

102 ICPCM21/E/60 Arun Kumar

Rout

Study on mechanical properties of

palm fiber reinforced epoxy

composites filled with rice-husk

57

103 ICPCM21/E/61 Saravana Sundar

A

Microstructural Characterization of

Aluminium to Titanium Friction Stir

Welds

57

104 ICPCM21/E/63 Subhrajit

Pradhan

Modelling and Parametric Analysis of

Abrasive Wear Behavior of

Eulaliopsis Binata Fiber Reinforced

Polymer Composites Using Response

Surface Method

58

105 ICPCM21/E/64 Susanta Behera

Synthesis and fabrication of acrylic

acid treated rattan fiber epoxy

composite

58

106 ICPCM21/E/65 A P Kajal Parida

Phase formation and electrical

properties study of PVDF thick films

synthesized by solution casting

method

59


107 ICPCM21/E/67 Sasmita Kar

Characteristic study of sisal-jute

hybrid composites filled with

nano marble dust particle

60

108 ICPCM21/E/68 Sasmita Kar

An investigation on tensile strength of

treated organic fibers

by regression modelling

60

109 ICPCM21/E/69 B N V S Ganesh

Gupta K

Effect of MWCNT/Nanosilica

reinforcement on the mechanical and

thermal behaviour of polymer

composite

61

110 ICPCM21/E/70 Ashis Hota

Thermal & Mechanical

Characterization of Untreated &

treated Natural fibers for

manufacturing of Polymer

Composite: A Review

61

111 ICPCM21/E/72 Subhashree

Sahoo

Investigation of structural and

dielectric behaviour of modified

batio3 ceramic for possible multilayer

ceramic capacitor (mlcc) application

62

112 ICPCM21/E/73 Basingala

Praveen Kumar

Systhesis and charecterisation of pan-

based c - ph composite 62

113 ICPCM21/F/04 Bikash Kumar

Samantaray

A novel silicon based composite

synthesized by Spark Plasma

Sintering

63

114 ICPCM21/F/05 Ipsita Madhu

Mita Das

Novel Al matrix composites with

thermally stable nanocrystalline

dispersoids

63

115 ICPCM21/F/07

Sushree

Priyadarshini

Mohapatra

Effect of lubricant and process control

agent addition on the properties of Ni-

based alloys developed by powder

metallurgy route

64

116 ICPCM21/F/08

Sweta

Suchismita

Sahoo

Effect of thermal ageing on the wear

behavior of glass fiber-epoxy matrix

composite with sic as filler material

64

117 ICPCM21/F/09 Nitin Kumar

Sahu

Multi Parametric investigation for

improvement in machining

characteristics on Aluminum boron

carbide in WEDM

65

118 ICPCM21/F/10 Sushree Sefali

Mishra

Consolidation of Si3N4-Mo-Al

cermet with Y2O3 and Al2O3 as

sintering additive in Argon gas

atmosphere

65

119 ICPCM21/F/12 Varsha Lisa John

Synthesis and Characterization of

Carbon Quantum Dots Derived from

Amine Modified Paper for Biological

Applications

66


120 ICPCM21/F/13 Srinivasu Dasari

Flexural behavior and cost efficiency

of glass/carbon inter-ply hybrid FRP

composites under high temperature

environment

66

121 ICPCM21/F/14 Srinivasu Dasari

Impact of 1D and 2D nano-filler

addition on fracture behavior and

flexural performance of glass/epoxy

composites

67

122 ICPCM21/F/15 Swadhin Kumar

Patel

Synthesis and characterization of

silicon carbide and graphite

reinforced copper-based hybrid

composites

68

123 ICPCM21/F/16 Atanu Kabiraj Observation of Order-Disorder Phase

Transition in Sheared Nanofluids 68

124 ICPCM21/F/17 Prateekshya

Suman Sahu

A facile one-pot synthesis of

magnetite graphene derivative and its

application in wastewater treatment

69

125 ICPCM21/F/18 K Chandrakanta

Temperature and Magnetic field

controlled Dielectric-relaxation and

Magnetodielectric response in

kbife1.9Co0.1O5 polycrystalline

69

126 ICPCM21/F/19 Rasmita Jena

Investigation of dielectric,

impedance, and magnetodielectric

behavior in Bi5Ti3FeO15 -Bi2Fe4O9

composites prepared by sol-gel

modified metho

70

127 ICPCM21/F/20 Abhipsa Kar

An experimental study on use of

biopolymer for sustainable

stabilization of slopes

70

128 ICPCM21/F/21 Mishra Sapna

Dual action of polarised Zinc

Hydroxyapatite - Guar gum

composite as a next generation bone

filler material

71

129 ICPCM21/F/22 Priyabrata Swain

Polarised chitosan with Cu substituted

hydroxyapatite composite exhibits

enhanced osteogenicity and

antibacterial efficacy in vitro

72

130 ICPCM21/F/23 Abhishek Patra

Corona poled gelatin - magnesium

hydroxyapatite composite

demonstrates antibacterial action with

osteogenicity

72

131 ICPCM21/F/24 Shubha Kumari

Polarised strontium hydroxyapatite -

xantham gum composite exhibits

osteogenicity in vitro

73


132 ICPCM21/F/25 Ravi Prakash

Verma

Highly stretchable reduced graphene

oxide-based strain sensor for

monitoring of physical activities

73

133 ICPCM21/F/27 Rudra Narayan

Kar

Effect of In-situ temperature and

Loading rate on the Out-of-plane

performance of Carbon nanofiber

embedded Glass fiber / epoxy

composite

74

134 ICPCM21/F/28 Ashirbad

Khuntia

Detection of pesticide using

Electrochemical sensor 74

135 ICPCM21/F/29 Saswati Mishra

A simple novel method for fabrication

of surfactant free hydroxyapatite

microsphere

75

136 ICPCM21/F/30 Itishree

Priyadarshini

Osteogenicity and antibacterial

property of Polarised HA-UHMWPE

composites as orthopedic implant

biomaterial

76

137 ICPCM21/F/31 Sthitiprajna

Muduli

Green synthesis and characterization

of Cerium Oxide and Ni-doped

Cerium Oxide nanoparticles

76

138 ICPCM21/F/32 Tushar Kanta

Mahapatra

Thermal and acoustic properties

evaluation of waste tire and textile

reinforced epoxy composites

77

139 ICPCM21/F/33 Khoobchand

Sunhare

A Review on the Effect of Welding

Processes on Mechanical Properties

of P91 Steel

77

140 ICPCM21/F/34

Dibyajyoti

Diptimayee

Pradhan

Mechanical and Thermal properties of

plasma irradiated GO/Glass

fibre/epoxy hybrid composite

78

141 ICPCM21/F/35 Shubham

Thermal Behaviour and Vickers

Indentation Response of Random

Discontinuous Carbon/Epoxy

Composites with Alumina Fillers

79

142 ICPCM21/F/36 Nibedita Dalai

Effect of dolomite powder on

properties of concrete as a partial

replacement of cement

79

143 ICPCM21/F/37 Jayashree Sa Green processing of alumina nano

material for thermal application 80

144 ICPCM21/G/01 Shubham

Computational micromechanics for

the elastic properties investigation of

unidirectional fiber-reinforced

polymer composites under different

80

145 ICPCM21/G/02 Prashant Prakash

Correlation between heat generation

and mechanical properties in friction

stir welding

81


146 ICPCM21/G/03 Katakareddi

Ganesh

High-temperature tensile deformation

behavior and structure evolution of

metallic glass composite nanowire: a

molecular dynamics study

81

147 ICPCM21/G/04 Satya Prakash

Kar

Numerical Analysis of laser melting

of Alumina Coated Steel 82

148 ICPCM21/G/05 Dibyendu Singha

Simulation, numerical analysis and

comparision of cutting parameter

during machining of AL6061-T6 and

Ti6AL4V alloy with various cutting

tool

83

149 ICPCM21/G/10 Sumantra Das Distribution of Model Fluid Particles

around Nanoparticle 83

150 ICPCM21/G/12 Abhijeet

Dhulekar

A Comparative Analysis of Power

Consumption in Conventional and

Differential – Less Drive for Electric

Vehicle

84

151 ICPCM21/G/17 Ravi Kumar

Verma

Modelling and Analysis of two-

wheeler Connecting rod with different

material using FEA

85

152 ICPCM21/G/18 Navneet

Swaroop

Modelling and Analysis of an EN19

crankshaft material in comparison

with Forged Steel crankshaf

85

153 ICPCM21/G/19 Rajendra Kumar

Biswal

Estimation of various second

harmonic generation parameter in

broad wavelength range using zno

nanorods

86

154 ICPCM21/G/20 Minati Prava

Samantaray

Molecular Dynamics Simulation of

Melting and Crystallization of Copper

and Nickel Nanoclusters

86

155 ICPCM21/G/21 Amit Kumar

Gantayat

Dynamic characteristic of Graphene

reinforced Axial Functionally Graded

Beam using Finite Element Analysis

87

156 ICPCM21/G/22 Arjun R Jagadish

Finite element simulation of liquid

nitrogen temperature rolling of marine

grade aluminium alloy 5754

87

157 ICPCM21/G/23 Sandeep Kumar

Numerical modeling for the

temperature profile in the Gaussian-

shaped spray deposited Al-alloy using

the finite difference method

88

158 ICPCM21/G/24 Dhaneshwar

Prasad Sahu

Buckling and vibration analysis of the

sandwich beam having

nanocomposite based viscoelastic

core layers

89

159 ICPCM21/G/25 Sateesh Bandaru Automatic alcoholic beverage

brewing machine 89


160 ICPCM21/G/26 Dhaval Shah Evaluation of tensile strength for 3D-

printed PLA specimens 90

161 ICPCM21/G/27 Om Krishna

Swarupa

Angular birefringence phase

matching behaviour of Lithium

Triborate (LBO) crystal for second

harmonic generation in broad

wavelength range

90

162 ICPCM21/G/28

Vaddiparthi

Venkata

Nagasarath

Performance analysis of a 5-stroke IC

Engine by changing different fuels 91

163 ICPCM21/G/29 Ipsita Mohanty

Influence of defect densities on

perovskite (CH3NH3PbI3) solar

cells: Correlation of experiment and

simulation

92

164 ICPCM21/G/30 Arpita Sahoo

Effect of acceptor density, thickness

and temperature on device

performance for tin-based perovskite

solar cell

92

165 ICPCM21/G/31 Balaji

Vasudevan

Simulation 0f Abrasive Water Jet

Drilling Process Using the FEA

Coupled SPH Models

93

166 ICPCM21/G/32 Venkatesan D

Development of Dynamic Materials

Model Processing Maps for modified

9 Cr-1Mo steel and Ti-6Al-4V ultra-

porous materials using the Flow

Curves predicted through Neural

Networks and Garafalo Equation.

93

167 ICPCM21/G/33 Suman Kant

Thakur

Optimization of hot rolling

parameters of CRNO steel with the

aid of hot compression test and

deformation map

94

168 ICPCM21/G/35 Abhilas Swain Artificial Intelligence Modelling of Al

7075 based Metal Matrix Composites 95

169 ICPCM21/G/36 Jagesh Kumar

Prusty

Free vibration analysis of sandwich

plate with viscoelastic core having

central cut-out

95

170 ICPCM21/H/01 Bibhuti Bhusan

Sahoo

Microwave processing of Carbon

doped Nickel-Cobalt composites for

high-performance supercapacitors

96

171 ICPCM21/H/02 Nitin Kumar

Sahu

Investigational Study of Ultimate

Tensile Strength into Welded Joint

through Taguchi Technique:

Evaluation and Optimization

96

172 ICPCM21/H/03 Sudha Saini Study of semiconducting to metallic

transition in calcium-doped 97


Sr2TiCoO6 double perovskites

thermoelectric materials

173 ICPCM21/H/04 Pratik Vikas

Wangikar

Importance of battery materials in

novel batteries 98

174 ICPCM21/H/05 Om Krishna

Swarupa

Enhancement of performance of

activated carbon based battery using

tio2 nanoparticle

98

175 ICPCM21/H/06 Subhasri

Subudhi

Investigation of photovoltaic response

in multiferroic kbife2o5 thick film 99

176 ICPCM21/H/07 Shakti Prakash

Jena

Investigation on combustion

parameters of a producer gas-

biodiesel-diethyl ether operated dual

fuel engine

99

177 ICPCM21/H/08 Sthitiprajna

Mishra

Recent advances of the 2D transition

metal dichalcogenides based

electrochemical biosensors

100

178 ICPCM21/H/09 Rama Chandra

Muduli

Wetting Behavior of Silicon

Nanowires Array Fabricated by

Metal-assisted Chemical Etching

101

179 ICPCM21/I/01 Jyoti Yadav

Green synthesis of silver

nanoparticles using Citrus X sinensis

(Orange) fruit extract and assessments

of their catalytic reduction

101

180 ICPCM21/I/05 Archana Mallik

Study of corrosion behaviour of

Aluminium alloys in borate buffer and

3.5 wt% nacl solutions

102

181 ICPCM21/I/06 Sweta Shukla Synthesis of Environment friendly

waterborne acrylic coatings 103

182 ICPCM21/I/07 Sourav Ganguly

Evaluating the corrosion response of

ultrasonically shot-peened squeeze-

cast AZ91 alloy reinforced with

graphene nanoparticles

103

183 ICPCM21/I/08 Ankush

Khansole

Effect of heat input on corrosion

behavior of automotive zinc coated

steel joint

104

184 ICPCM21/I/09 Betha Lokesh

Sriram Smart garbage management system 104

185 ICPCM21/I/10 Jagadish Mallick

Durability of Precious Slag Ball

Concrete under Various Exposure

Conditions: A Waste from Steel

Industry

105

186 ICPCM21/I/11 Jagadish Mallick

Influence of Steel Industry Waste as

Fine Aggregate in Concrete: NDT

Analysis

105


187 ICPCM21/I/12 Subhrajit Beura

Moisture effects leading to Tg

depression in GFRP composites: An

analysis

106

188 ICPCM21/I/13 Ashok Kumar

Gupta

A novel solution based methodology

to create super-hydrophobic zinc

oxide nanostructures on galvanised

steel for enhancing corrosion

protection

106

189 ICPCM21/I/14 Amlan Das

Ionic solution based electrochemical

synthesis of graphene and its

corrosion protection characteristics

107

190 ICPCM21/B/06 Sujata Devi

Role of Slag Composition on Slag

Flow Characteristics in Blast

Furnaces

107

Department of Metallurgical and Materials Engineering Page 1 National Institute of Technology, Rourkela

(Abstract ID: ICPCM21/A/01)

Detection of Grains in Aluminium Metal Matrix Composites using Image Fusion

Tapasmini Sahoo1, Sweta Rani Biswal2, Kunal Kumar Das3 1, 3Department of Electronics and Communication Engineering,

2Department of Mechanical Engineering

Siksha 'O' Anusandhan University

Abstract: Metal matrix composites (MMCs) are sophisticated materials that combine the toughness of a

robust metallic matrix material such as aluminium with the hardness of a hard ceramic reinforcement to

create a composite with exceptional material qualities. Aluminium metal matrix composites are lightweight,

corrosion-resistant, and extremely durable. Because of their low mass density, stiffness, and high specific

strength, aluminium alloys with ceramic reinforced particles are more appealing in aircraft, transportation,

and industrial applications. This paper depicts a discrete wavelet transformation (DWT) based image fusion

technique for detection of grains present in the hybrid composite to study the metallographic

characterization. The fusion technique combines optical microstructure images of the same composite with

diverse resolution, intensity to get a combined image with more suitability for extracting the grains and

grain boundary which is difficult to find from an image in various modalities. The performance and relative

importance of the proposed fusion technique is investigated by some statistical evaluation measures. The

values of the statistical measure suggests that the execution of the proposed strategy is appreciable. The

statistical analysis yields that the suggested fusion methodology successfully manages to retain the

maximum content of the visual truth in material characterization, which helps in metallographic

characterization of hybrid composite with in stipulated time and better accuracy.


Study of thermal decomposition parameters of UHMWPE sheet

Nidhi Khattar1, Urmila Rani1, P.K. Diwan1 1 Department of Applied Science,

UIET, Kurukshetra University, Kurukshetra-139119, India

Abstract: Thermal decomposition of UHMWPE (ultra high molecular weight polyethylene) sheet is

studied, at 5 oC/min heating rate, utilizing TGA/DTA technique. The measurements are performed in the

temperature region 50 to 500 oC, in the presence of nitrogen environment. It reveals that the decomposition

mainly occurs in five different temperature regions. Initially, mass of sheet is almost same up to ~180 oC

temperature. As the temperature approaches to the melting point (~190 oC), the mass of the sheet

increases. This may be due to uptake of diffused oxygen present in the amorphous phase of the considered

sheet. Afterwards, the decomposition starts and mass loss increases with increase of temperature (up to 400 oC) and follows the non-linear behaviour. Subsequently, in the temperature region ~400 – 450oC, mass loss

increases linearly. Then with further increase of temperature (~ 460oC), slight increase in mass gain is

observed, due to formation of cyclic/aromatics through Diels-Alder reactions. Further, the mass decreases

with increase of temperature up to 500 oC. Finally, the present measurements are used to find various kinetic


parameters like activation energy, pre-exponential and thermodynamic factors by adopting two different

kinetic models (Ozawa-Flynn-Wall (OFW) and Coats and Redfern (CR)). The study is important because

the considered material is widely used in different temperature/environment for variety of applications in

engineering, medicine and medical science.


Influence of different eco-friendly dielectric on EDM performance - a brief

review

Bappa Mondal1, Debayan Mondal 2

1GMR Institute of Technology, Andhra Pradesh- 532127,

2University of Calcutta, Kolkata-700106

Abstract: The recent development of Material Science gifted us many engineering materials of high

strength and hardness, which are very difficult to machine through conventional machining processes or

even by existing Electric Discharge Machine (EDM). EDM is one of the most widespread non-conventional

machining processes. It is mainly used to machine extremely low machinable and conductive materials as

challenging jobs. The material is removed by a controlled erosion by a series of electric sparks, and a

suitable gap is maintained between tool and work piece through a servo control unit. The performance and

accuracy have been enhanced by the circulation of suitable dielectric fluid in-between tools and workpieces.

Many researchers have dedicated their studies to improve the machinability of the EDM process in terms

of material removal rate, tool wear rate, surface roughness etc. The most appreciable and accepted technique

is the use of powder mixed dielectric fluid with varying process parameters to achieve a reasonably good

material removal rate, better surface finish, and minimum tool wear rate. This study is aimed to present a

brief literature review in the fluence of different eco-friendly dielectrics on EDM performance. The

outcome of the article will be highly beneficial for the researchers to take the various challenges in the

concerned topic using eco-friendly goods, ensuring the planet's safety.


Failure behaviour of spot-welds on automotive steel sheets

Gorti Janardhan1, Goutam Mukhopadhayay

2, Krishna Dutta

3

1Department of Mechanical Engineering, GMR Institute of Technology, Rajam, Srikakulam, Andhra

Pradesh, India 2R & D Scientific Tata Steel Limited, Jamshedpur, India

3Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela,

India

Abstract: Resistance spot welding is one of the most commonly used joining technology in automotive

industry. A typical body in white structure of a car consists of 5000-7000 spot-welds. During service period

of a car, the failure of joints under static and fatigue loads due to rough roads, load excursions, harshness,


and vibrations is of serious concern. The current study aims to investigate the failure behaviour of spot-

welds on different varieties of automotive steels. The failure of the spot-welds is a competitive

phenomenon. In current study attempts have been made to investigate different modes of failure of spot-

welds under static and cyclic loads. Besides, microstructural development and microhardness distribution

in the joints have been studied. The major findings from this work are: the joints under fatigue loading

tends to fail primarily from heat affected zone (HAZ) while on the other hand, the failure of the joints under

static loading takes place from base metal (BM) or interface of HAZ/BM. The failure of the joints under

static loading is governed by strength of the base metal, however the failure of the joints under fatigue

loading is primarily governed by stress concentration at the interface of two conjugated sheets.


Self-lubricating composite: A new generation composite for efficient tribological

application

Sweta Rani Biswal1, Seshadev Sahoo1 1Department of Mechanical Engineering,

Institute of Technical Education and Research, Siksha ‘O’ Anusandhan (Deemed to be University),

Odisha, Bhubaneswar 751030, India

Abstract: In a highly developed contemporary society, transport, power generation, and production are

essential industrial activities. It involves moving people and all sorts of materials in many different ways,

using all types of machinery and mechanical structures with many moving components and therefore

interacting surfaces. The smooth, reliable, and durable work of such machines depends very much, on how

well friction and wear on their various interacting surfaces are controlled. This article provides an overview

of the work carried out in the past decade to recognize the challenges and opportunities for functional self-

lubrication composites in the tribological applications. With ultra-high strength and wear resistance

combinations, self-lubrication micro and nano-composites in metallic matrixes will improve the energy

efficiency, system reliability, operational comfort, repair capability and protection. The present study also

focuses on usable functional materials having self-lubricating properties for automotive applications in

fabricating automotive parts like pistons, brakes, bearings etc. Evolution in the field of fabrication

technology opens up many ways to develop new age self-lubricating materials with the addition of two-

dimensional (2D) solid lubricants like graphite, dichlogenides such as molybdenum disulfide and tungsten

disulfide etc. This study also represents the challenges and future prospects of the application of self-

lubricating composite. This article helps to find new gateways for fabricating composites with different

combination of reinforcements.



Development of CuO nanostructures using one step chemical bath deposition under

microwave heating and their characterizations

Ravi Shankar Rai1, Vivek Bajpai1 1Department of Mechanical Engineering,

Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand, India

Abstract: Development of CuO nanostructures using one step chemical bath deposition under microwave

heating and their characterizations Ravi Shankar Rai* , Vivek Bajpai Department of Mechanical

Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand, India *Email

of corresponding author: [email protected] *Secondary email of corresponding author:

[email protected] Abstract Varied morphologies of CuO nanostructures (NSs) were

synthesized using one step chemical bath deposition under microwave heating, at 1200 watt microwave

powers and for different growth durations. The grown nanostructures were analyzed for their

morphological, structural, compositional and optical characteristics. The precursor solution for the bath

deposition was prepared by the amalgamation of Copper nitrate hexahydrate and Hexamethylene-tetra-

amine in the deionized water solution. The structural and crystallinity of the as grown CuO NSs were

studied by wide angle X-ray diffractometer (XRD). The morphologies of prepared of CuO nanoparticles

were verified by Field emission scanning electron microscopy (FESEM) and measurements of size and

surface area od developed nanoparticles were perform by analyzing the FESEM micrographs using ImageJ

software. It reveals the approximate sizes of nanoparticles are in the range of 15-20 nm approximately. The

energy dispersive spectroscopy (EDS) analysis of the synthesized CuO nanoparticles was carried out to

determine their composition and the presence of other major impurities. The optical characteristics of as

grown CuO nanoparticles were examined by absorption spectra UV-visible range. The significant peak of

absorption spectra is seen near 340 nm wavelength which explains the monodispersion behavior of

nanoparticles. The disorderness of as prepared CuO nanoparticles was characterized by calculating Urbach

energy of absorption coefficient with photon energy. These characterizations of as synthesized CuO

nanoparticles explain the feasibility and suitability of these materials to be used for different applications.


First principle study of defect induced band structure in Cu substituted

Bi2Te3 topological insulator

Sambhab Dan1, Debarati Pal 1, Swapnil Patil 1

1Indian Institute of Technology (BHU), Varanasi 221005

Abstract: In this paper, we have dealt with the electronic band structure of Cu substituted Bi2Te3

topological insulator along with its defect induced structure. Pristine Bi2Te3 compound has a unique band

structure (semiconducting bulk band and metallic surface band); here we report how bulk band scenario

can affect on injecting Cu atom in the parent Bi2Te3 compound. Our ab initio simulation reveals that 5 at.wt.

% of Cu substitution in Bi site makes Bi2Te3 a p-type ground state configuration whereas, 5 at.wt. % of Cu


interrcalation makes Bi2Te3 a n-type ground state configuration. We have also discussed the band structure

of the charge neutral configuration of Cu substituted Bi2Te3 compound and a whole discussion is presented

in the basis of structural defect and band structure.


Comparative assessments of machining forces in 3D printed polymer composite

during milling operation using two coated carbide end mills

Anshuman Das1, Dineshwar Barrenkala

2, Kishore Debnath 3, Pawan Kumar 4, Raman Rajan1,

Saroj Kumar Patel2

1 Department of Mechanical Engg, DIT University, Uttarakhand, 2 Department of Mechanical Engg, NIT Rourkela,

3 Department of Mechanical Engg, NIT Meghalaya, 4 Department of Mechanical Engg, MITS Madanapalle

Abstract: The composites of carbon fiber reinforced polymer (CFRP) are rapidly turning into the most

extensively used material in aerospace and automotive applications due to their superior corrosion-resistant

exterior and ratio of strength-to-weight. The flexibility to fabricate complex shapes and alter the fiber

orientation of CFRP composites via three-dimensional (3D) printing or additive manufacturing is gaining

prominence. However, because of their anisotropic and heterogeneous structure these composites were

regarded as the difficult-to-cut materials. The parts made out of these composites are often made to near-

net shape in astronautic and aerospace industry. However, part finishing typically necessitates post-process

machining such as milling, in order to satisfy dimensional accuracy prior to assembly. The aim of this thesis

is to explore the machinability aspects in terms of machining forces 3D printed CFRP composites by milling

CFRP employing TiAlCrN and hard carbon coated solid carbide end mills in dry cutting environments. A

3D printed multidirectional CFRP workpiece was fabricated using a Mark forged industrial printer and

milling operations were carried on additively manufactured workpiece with two distinct coated tools

according to the experimental design created on Taguchi’s L16 orthogonal array in which three variables

namely feed rate, depth of cut, spindle speed were altered at four distinct levels. TiALCrN coated carbide

tool outperformed hard carbon coated carbide tool in terms of machining forces.


The effect of reinforcement composition and sintering temperature on

microstructure and properties of Al-SiC-fly ash composite

D K Mishra1, A P Samal1, R P Dalai1, P S Nanda1

1Department of Metallurgical & Materials Engineering, Veer Surendra Sai University of Technology,

Burla, India-768018

Abstract: Aluminium and its alloys are gaining more importance in different sectors such as aerospace,

automobile, and construction industries due to their high strength to weight ratio, superior corrosion


resistance, and high compressive strength. Despite this, it fails to achieve the required properties under high

loading and temperature conditions. On the other hand, the reinforcement of different ceramic phases such

as SiC, Al2O3, SiO2, TiO2, and CaO in the Al matrix can effectively improve the durability under the above

mentioned harsh conditions. Moreover, fly ash (FA) is well-known hugely available industrial waste

material. So the present objective of the study is to reinforce the SiC and FA in the Al metal matrix to

prepare Al-SiC-FA composite followed by their microstructural evolution and mechanical properties

evaluation under the variation in reinforcement composition and sintering temperature. The scanning

electron micrographs confirm the significant advancement in interfacial bonding between the matrix and

reinforcement phases with the increase in sintering temperature. Further, the micrographs also confirm the

uniform distribution of reinforcement particles across the matrix phase. The hardness, compressive strength

and density of the composite pellets are progressively increased with the increase in sintering temperature.

However, the increase in FA content above 5% is accompanied by the decrease in compressive strength

and hardness due to the significant rise in porosity level.


Development of Al-SiC-TiO2 hybrid composite using powder metallurgy

route and the influence of TiO2 variation on microstructure and mechanical

properties

D K Mishra1, G Behera1, R P Dalai1, S K Badjena1, R P Pattanaik1

1Department of Metallurgical & Materials Engineering, Veer Surendra Sai University of Technology,

Burla, India-768018

Abstract: Nowadays aluminum metal matrix hybrid composite (AMMHC) reinforced with SiC and TiO2

is gaining wide attraction due to its high strength to weight ratio, compressive strength, wear resistance,

and hardness in different fields such as aerospace, automobile, and other structural components. In the

present study, the SiC and TiO2 powders is reinforced in an aluminum matrix to fabricate aluminum metal

matrix based Al-SiC-TiO2 hybrid composite via powder metallurgy route. Further, the influence of

variation in TiO2% over the microstructure and mechanical properties is investigated. The overall scanning

electron micrographs confirm the uniform distribution and development in interstitial bonding between the

reinforcement particles and matrix phase. Moreover, the measured hardness and density values are

significantly increased with the increase in TiO2%. However, the compressive strength is increased with an

increase in TiO2 up to 6%, but at a higher percentage of TiO2; it is showing a decreasing trend due to the

excess cluster formation.



Comparison Study on Wear and Corrosion Behavior of Plasma Melted and Sand

Casted LM0 Alloy

Jagadish Parida1, Subash Chandra Mishra1, Ajit Behera1, Subhadra Sahoo2 1Metallurgical and Materials Engineering Department,

NIT, Rourkela-769008, Odisha, India. 2Veer Surendra Sai University of Technology, Burla, Sambalpur

Abstract: Many transportation industries (i.e. food, chemical and electrical) worldwide use aluminum and

its alloy as the principal raw material because of their relatively low cost, lightweight, high strength,

availability, high conductivity, excellent corrosion resistance and durability etc. In the current work, wear

and corrosion behavior of plasma melted and sand casted LM0 alloy is investigated. LM0 alloy was

prepared by both plasma melting and sand casting techniques. A comparative study of optical, hardness,

density, corrosion and wear of plasma melted and sand casted alloy samples were carried out. Dry sliding

wear tests were conducted by pin-on-disc wear testing machine at applied load 10-20 N, with varying

sliding velocity 1.41-1.88 m/s for 5 min. Wear variation with the applied load and sliding velocity was

studied from the experiment. For corrosion behaviour study, alloy samples is held on seawater for 2weeks,

and weight loss/gain in each week was measured. It is noticed that higher hardness and density of sand

casted alloy sample than plasma melted alloy but plasma melted alloy sample shows higher corrosion and

lower wear resistance than sand casted alloy. The worn surfaces and surface corrosion products

composition and morphology were examined with the help of an SEM in order to check the wear and

corrosion mechanism. The abrasive wear and pitting corrosion mechanism get from experimental

investigation.


Prediction of Kerf width and Taper angle in Laser drilling of S32750 Using

Integrated ANFIS

N Rajesh1, G Gurumahesh1, P Venkataramaiah2 1Associate Professor, Dept. of ME, S V College of Engineering, Tirupati, A.P, India, 2Professor, Dept. of ME, S V University College of Engineering, Tirupati, A.P, India.

Abstract: Super Duplex Stainless Steel (SDSS) S32750 is a mixed microstructure of austenite and ferrite

(50/50) which has improved strength over ferritic and austenitic steel grades. The main difference is that

Super Duplex has a higher molybdenum and chromium content, which gives the material greater corrosion

resistance than standard duplex grades and is highly corrosive resistant. The laser cutting process, which is

a non-traditional machining process, has been an alternative in trimming of the SDSS to regain the final

shape. This paper predicts the effect of input parameters of Nd:YAG (Neodymium:YttriumAluminum-

Garnet) laser cutting on S32750, focusing on cutting quality and mechanical properties. Nd:YAG laser

cutting machine was used to perform the cutting process. Kerf width and taper angle were evaluated as

cutting quality with variation in laser power, cutting speed and gas pressure.



Increase in life of Snorkel and Lower Vessel of RH-OB of SMS-II at Rourkela Steel

Plant, to increase productivity and achieving lower operating cost.

S.Roy, A.Bhattacharyya, P R Padhee

Abstract: The RH-OB de-gasser was commissioned in SMS-II at Rourkela steel Plant in 2016.This unit

was added with an objective to make better quality steel through deep de-gassing up to even 1 to 2 millibar

vacuum. The capacity of RH de-gasseris to handle 150 tons of liquid steel. The major component of the

RH-OB is the Snorkel and the Vessel (Both lower and upper vessel) which are lined with refractory. The

Snorkel along with lower vessel bricks are changed after each campaign. Initially, thecampaign life was

only 88 heats and was the major bottleneck, which was adversely affecting theproductivity and cost. During

analysis, two major problems were detected. First is the sudden creation of hole and collapse of refractory

at the Snorkel and Vessel welding joint area. Secondly, the high erosion rate and collapse of brick from the

retainer plate area of lower Vessel.In the RH-OB de-gasser, the liquid steel while physically moving inside

the vessel through the inlet and outlet snorkel, maximum impact was coming on the retainer plate area.

Since the plate was getting eroded due to abrasion by liquid steel, the refractory was collapsing. The second

problem was, improper welding, there by creation of pin hole in the welding area. High velocity ingress of

air inside the vessel from the pin hole at the welding joint was giving sufficient impact to collapse a portion

of refractory from the snorkel and leg area junction. Both these phenomena weredeeply studied and solution

was found out. These modifications and Quality assurance plan (QAP) resulted in longer life of the vessel

and Snorkel (more than 125 heats) which in turn increased the productivity and reduced the operating cost

of RH-OB.


Effect of addition of 3%Al2O3 on mechanical and microstructural properties

in Al-16Si hypereutectic alloys with pouring temperature

S K Sahu1, R K Patra

2

1Metallurgical and Materials Engineering,

VSSUT Burla, Sambalpur Odisha, India-768018 2Metallurgical and Materials Engineering,

GCE Keonjhar, Odisha, India-758002

Abstract: It is well know that the mechanical properties of hypereutectic Al-Si alloys are affected by the

size, volume fraction and distribution of primary and eutectic Si particles. However, the pouring

temperature of the alloy also acts as the vital role for simultaneous refine and modifying Si particles in

hypereutectic Al-Si alloys by conventional means. The particles distribution of nano particles on the melt

is different at different pouring temperature which affects the physical, mechanical and the microstructural

behavior of Al-Si alloys. Various content of gamma Al2O3 nano particles were added in hypereutectic Al-

16Si alloy melt and further dispersed through an ultrasonic cavitation based technique. The cast

hypereutectic Al-16Si alloy with the nano particles addition showed a significant enhancement in hardness,


strengths and ductility. The wear behaviour of the materials depends on the distribution of intermetallic

compound over melt. This paper suggests that gamma Al203 nano particles effectively induced simultaneous

refinement of primary Si and modification of eutectic Si, resulting in superior ductility enhancement that is

much higher than that conventional methods can offer. Moreover the large plate eutectic Si particles were

also modified into fine core particles. The result could have great potential for numerous applications. The

experiment has been performed on a group of specimen under different loads and with different speeds. We

observe from the experiment that, with the increase in Al2O3 content wearing tendency decreases due to

formation of Al-Si intermetallic compounds.


Creep behavior of nanocrystalline materials: Implications of thermal stability

Irfan Wani1, Nikhil Rai

2, Srikant Gollapudi

1

1Indian Institute of Technology Bhubaneswar, Odisha,

2University of Illionis, Chicago, USA

Abstract: In recent decades, nanocrystalline materials have attracted much attention because of their

enhanced strength, hardness and wear resistance. However, their poor thermal stability and creep resistance

has limited their wide spread applications. The purpose of the present study is to investigate the creep

behavior of thermally stable nanocrystalline materials by choosing copper as a model system. Guided by

the Using thermodynamics based model of Murdoch and Schuh model, Zr was identified as a solute atom

which could provide thermal stability to nanocrystalline copper; wherein the Zr atoms are expected to

decorate the grain boundaries of copper. The segregation of Zr at the grain boundaries is expected to

influence the grain boundary diffusivity and threshold stress for vacancy emission as per the model of

Hondros and Seah and Mishra et al. respectively. Using this knowledge and by employing the Bird-

Mukherjee-Dorn equation, the creep strain rates of deformation was calculated for nanocrystalline Cu-Zr

alloy and compared to that of nanocrystalline Cu and conventional coarse grained copper. The results from

this theoretical investigation will be presented.


An Investigation on Machinability of Nitronic 50 in Dry Environment using

Uncoated WC-Co Tool Inserts.

Ayan Banerjee1, 1Kalipada Maity1 1Department of Mechanical Engineering,

National Institute of Technology Rourkela, Pin- 769008, Odisha, India

Abstract: A variety of nitrogen strengthened austenitic stainless steels namely Nitronic 50 is a very useful

alloy for marine industry finding its application in the form of drive shafts, pump shafts, valve fittings,

pressure vessels, fasteners, sucker rods for oil rigs etc. Properties such as excellent corrosion and chloride

pitting resistance combined with low magnetic permeability and high strength makes this alloy eligible for

such applications. Studies regarding machinability of this alloy is almost nil and hence it demands an


investigation of the machinability of this alloy. In the current work, turning has been performed on Nitronic

50 under dry environmental condition using uncoated tungsten carbide inserts and responses in the form of

magnitude of cutting force, tool-tip temperature, surface roughness, chip morphology and tool wear were

studied.


Mechanical responses of GFRP composites through polymer hybridization technique

B. N. V. S Ganesh Gupta K1, Ritupurna Sahoo1, Rajesh Kumar Prusty1, Bankim Chandra Ray1 1FRP Composite Materials Laboratory,

Department of Metallurgical and Materials Engineering

National Institute of Technology, Rourkela-769008, India

Abstract: Increasing societal demand for sustainable structural approaches has led to a rapid increase in

the demand for hybrid fiber-reinforced polymer (FRP) based composites. Hybrid composites were

developed, attempting to reduce the cost of composites with various martial combinations. The current

experimental work focuses on the evaluation of the mechanical performance of fiber-reinforced polymer

hybrid composites (i.e., Epoxy and Vinyl ester polymers in Glass fiber composites) over conventional FRP.

The study's findings indicate an increment of mechanical properties of hybrid composites such as tensile

strength, through-thickness compressive strength and impact strength values which were 15.75%, 11.07%

and 14.10%, respectively. A resin burn-off test was conducted to calculate the density of all the samples.

Post-failure analysis was also done for the tensile and through-thickness tested composite samples to

identify the possible failure modes.


Effect of traverse speed and tool geometry on microstructure and mechanical

properties of friction stir welded aluminum alloy

Akarapu Hareesh1, Suresh Gudipudi1 1Department of Mechanical Engineering,

CHAITANYA (Deemed to be University), Kishanpura, Hanamkonda, Warangal, Telangana, India

Abstract: In the present study, the FSW (Friction Stir Welding) of aluminum alloy (AA6061-T6) is

reported for improved microstructural and mechanical properties. The FSW is performed at varied traversed

speed (30, 40, and 50 mm/min) at constant rotational speed of 1120 rpm. The three different tool geometries

such as Straight cylindrical, Tapered cylindrical, and Taper threaded were used. The microstructure was

studied and Vickers microhardness was measured at various zones namely stir zone, ThermoMechanically

Heat effected Zone, and base metal zone. The uniaxial tensile test was conducted at the rate of 1.5 kN/min.

Impact tests are performed on charpy impact test. The joint fabricated using tool traversing speed of

50mm/min with straight cylindrical pin profile showed better mechanical properties compared to other

joints. The reason was explained with help of detailed characterization results.



Friction stir welding of 6xxx and 7xxx series aluminium alloys: a review

Ritick Ranjan Srichandanray1, Gourahari Behera

1, Sushant Kumar Badjena

1

1Department of Metallurgical & Materials Engineering,

VSSUT, Burla, Sambalpur, Odisha 768018

Abstract: In the automotive and aerospace industries the aluminium alloys are used extensively to design

various components. Aluminium alloys are widely used in these applications because of their lightweight

and integrate advantages of cost and performance. During the fabrication of components, the primary steps

are joining and welding of aluminium alloys. And the joining of these alloys is difficult by conventional

welding processes until then a new solid-state welding process known as friction stir welding (FSW) was

developed which is effective and profitable. Friction stir welding has a great success in joining similar and

dissimilar aluminium and other alloys. This review shows the joining of dissimilar aluminium alloys of

6xxx and 7xxx series combinations with friction stir welding. The effect of various parameters such as

rotational speed, welding traverse speed, the geometry of the tool, and travel angle was discussed. The

microstructural features of the weld zone and thermo-mechanically affected zone (TMAZ) is investigated.

Further, the mechanical properties of the welded joints are measured and compared with that of base

material, and the structure-property correlations are summarized. To uplift further interest in this field,

technology diffusion should guide with new directions to extend research and improve the process of

joining a set of combinations of dissimilar aluminium alloys.


Simulation Based Optimization and Validation of Mechanical Stirring Parameters to

Produce Al-Sn Alloys by Direct Chill Casting

Deepak Patel1, Prasenjit Biswas1, Archana Mallik2, Sanjeev Das1 1Advanced Metal Casting Laboratory, Department of Metallurgical and Materials Engineering, National

Institute of Technology Raipur, G. E. Road, Raipur - 492010, India 2Electrometallurgy and Corrosion laboratory, Dept. of Metallurgical and Materials Engineering, National

Institute of Technology Rourkela, Odisha – 769008, India

Abstract: Al-Sn immiscible alloys for bearing materials are difficult to cast by conventional direct chill

casting method. At higher concentration Sn accumulates at the bottom of as-cast solid due to significant

density difference in Al and Sn. In the present investigation Al-Sn alloys were fabricated by the direct chill

casting method under the influence of mechanical forced convection. CFD-simulation based approach has

been implemented to study the effect of rotorstator device in the molten metal sump by ANSYS CFD

software. The effect of melt flow behavior and temperature profile according to different shearing rates and

positions of the device have been investigated to optimize the casting process. Different conditions were

analyzed and an optimized parametric approach has been predicted. The results were experimentally

validated and quality of as-cast ingots were evaluated. Hence, this optimization approach can be used to


produce better quality Al-Sn bearing materials with uniformly distributed Sn phase in Al-matrix by the

direct chill casting route.


Micro-mesoporous Al2O3-SiCO hybrids from polymer derived ceramic route for

adsorption studies

I.P.Swain1 ,and S.K. Behera2 1Department of Mechanical Engineering,

Ajeenkya D Y Patil University, Pune, India, 411047 2Department of Ceramic Engineering,

National Institute of Technology, Rourkela, Odisha, India, 769008

Abstract: Polymer-derived-ceramics (PDC) offer advantages in terms of simple processing methodology,

lower processing cost and tunable porosity. Porous PDCs are directed towards applications in lithium ion

batteries, catalyst supports, adsorption processes, filtration, hydrogen and methane storage and gas

separation. Escape of organic moieties during pyrolysis leads to a range of porosity. The challenge is to

control the porosity and therefore retain the specific surface area (SSA) at higher temperatures, where they

tend to sinter and give an extremely lower SSA. The work proposes a novel versatile method for the

fabrication of a hybrid by using a nanostructured ceramic oxide (Alumina) template around which the PDC

polymer is coated to hinder the shrinkage. This leads to the retention of the SSA up to 250 m2 g-1 compared

to the bulk PDC at same pyrolytic conditions and porosity in the range of 1-5 nm. The micro-mesoporosity

found within 1-5 nm made it a potential candidate for adsorption studies as an application. Preliminary

investigation included removal of toxic dye in aqueous environment, such as water. High kinetics was

observed for malachite green dye removal with initial adsorption rate of 9.6 mg g-1 min-1 and adsorption

capacity of 4 mg g-1.


Experimental and Microstructural Analysis on Effect of Process Parameters in EDM

of Monel 400 Super Alloy Using RSM

1Prabin Kumar Sahoo and 1Manas Ranjan Panda

GIET University, Gunupur, Rayagada, Odisha-765022, India

Abstract: In the present work, an experimental investigation on die-sinking electrical discharge machining

of Monel-400 has been presented. The Monel-400 is a nickel-copper based alloy, owing to its corrosion

resistance property; it is widely used in chemical plants and marine applications. Electrical Discharge

Machining (EDM) is a metal-removal process that is used to remove metal from the surface of the material

by means of electrical sparking. The metal-removal process is performed by applying an electrical current

with high intensity through the electrode to the workpiece. In this study, Monel-400 alloy is used as

workpiece to observe all the response variables such as Material Removal Rate (MRR), Tool Wear Rate

(TWR), and Surface Roughness (Ra)by applying input parameters namely discharge current (Ip), pulse-on


time (Ton), voltage gap (V). A response surface based Box-Behnken design has been proposed to make an

estimate of the machining parameters on the responses. It is remarked that discharge current (Ip) and pulse-

on time (Ton) significantly affecting the characteristics of Monel-400. A metallographic examination is

performed on the machined surface intending to reveal the microstructural characteristics of the material.


Effect of oxide and sulphide flux on weld characteristics of duplex stainless steel

B Bal 1, N Sahu 2, B K Barik 3, S R Das4, D Panda 5 1,2Department of Metallurgical and Materials Engineering, VSSUT, Burla

3,4Department of Production Engineering, VSSUT, Burla 5Department of Metallurgical and Materials Engineering, NIT, Rourkela

Abstract: This paper investigates the effect of oxide and sulphide flux on properties like depth of

penetration (DOP), depth to width ratio (DWR), slag morphology on the top surface of fusion zone and

microstructure, using activated tungsten inert gas wielding(A-TIG) process. Here three different kinds of

single component flux that is TiO2, SiO2, MoS2 were used to prepare the activated flux. Bead-on-plate

autogenous tungsten inert gas welding performed on a 6 mm thick duplex stainless steel (DSS). The DOP

was found to be highest (4.5 mm) in case of MoS2 for the same welding conditions and lowest (4 mm) in

case of TiO2. Similarly, the increasing order of DWR is TiO2, SiO2, MoS2, respectively. Two different

types of slag were observed (1) slag is distributed uniformly throughout the weld bead (2) slag formed near

the boundaries of weld bead. In case of flux TiO2 slag distributed uniformly throughout the weld bead and

in case of flux SiO2 slag accumulated near the boundaries of weld bead. A very clean weld bead was

observed in case of flux MoS2. Microstructure of duplex stainless steel of fusion zone and heat affected

zone (HAZ) with different flux were analyzed. The microstructure of fusion zone consists of ferrite matrix

and austenite grain distributed uniformly in the matrix. There is coarsening near the heat affected zone

(HAZ).


Ballistic performance of green woven fabrics –A short review

1Sasmita Kar, 2Sarojrani Pattnaik and 3Mihir Kumar Sutar

1,2,3VSSUT, Burla, Odisha, India.

Abstract: The enhancement in ballistic performance for self protection acquired a great interest in the field

of military or defense sector. The conventional metal or ceramic based armors from the very beginning are

replaced by high performance synthetic polymers due to their exceptional strength to weight ratio and

elevated heat protection characteristics. Kevlar and Aramid fibers are enormously used in manufacturing

of various ballistic self protective items. But, in concern to the environmental hazards, natural fibers

significantly overcome the limitations of the synthetic fibers or hybrid natural/synthetic fibers. A lot of

research has already been developed by using green fibers reinforced composites owing to its high specific

strength, stiffness, light weight and maximum impact energy absorption behavior. This paper presents a


short review that elucidated the significance of few novel high performance green fibers such as bamboo,

curaua, jute, kenaf, etc., in the field of ballistic applications. The architecture of fibers and their

configurations as well as the manufacturing processes also immensely influence the high energy absorption

potential. The current paper highlights the importance of bio-influenced woven fabrics, multi layered

fabrics, hybrid fabrics and the impact of polymers in manufacturing of personal protective armor, helmets

or other items. The various predominant factors such as toughness, ductility, thickness and strength of

composite materials are also discussed for better ballistic performance.


Optimization of process variables in drilling of LM6 / fly ash composites

using Grey-Taguchi Method

C Sarala Rubi1, J Udaya Prakash2, C Rajkumar2, A Mohan2, S Muthukumara Samy2 1Department of Physics,

2Department of Mechanical Engineering 1,2Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai

Abstract: Drilling is a critical step in the hole-making operation. It is quite beneficial for part

assembly. Hard particulates introduced into the continuous phase of the composite materials,

makes them hard to process. As a result, optimizing the drilling variables is unavoidable. The

primary goal of this study is to manufacture LM6/Fly Ash with weight percentages of fly ash 3,

6 and 9 adopting the stir casting technique. The next goal is to use Taguchi's Design of

Experiments to drill composite materials using feed rate, spindle speed, drill material, and % of

reinforcement as drilling process variables at 3 levels. The ultimate goal is to optimize the drilling

process variables for obtaining minimum thrust force, surface roughness and burr height using

multi-objective Grey Relational Analysis. The optimum process variable achieved is F1S3D3R3,

i.e., 50 mm/min, 3000 rpm, TiN-coated drill bit and 9 wt. % of fly ash.


Generation of microchannels on PMMA using an in-house fabricated µ-ECDM

system

K V J Bhargav1, PS Balaji1*, Ranjeet Kumar Sahu2

1Department of Mechanical Engineering,

National Institute of Technology Rourkela, India 769008 2Department of Mechanical Engineering,

National Institute of Technology Karnataka Surathkal, India 575025

Abstract: Electrochemical corona discharge micromachining process (µ-ECDM) is a newly advented,

advanced hybrid machining process capable of machining conducting and non-conducting materials. In this

article, Polymethyl methacrylate (PMMA), a non-conducting material, often used in microfluidic

applications, is machined to generate microchannels. The process parameters selected for machining are


voltage (V), concentration (wt%), and duty factor (DF). The process parameters are chosen at three levels,

and their effect on machining characteristics such as tool wear rate (TWR), material removal rate (MRR),

and surface roughness (SR) are detailed in this paper. Individual response optimization is carried out, and

confirmation tests are conducted to obtain the best compromise for the responses.


An investigation on the effect of spheroidization annealing on low cycle fatigue (LCF)

characteristics of low and medium carbon steels cold forged components

manufactured using the raw material produced through liquid forging route.

D Venkatesan1, R Chandramouli2 , S Venugopal3 1School of Mechanical engineering, SASTRA Deemed to be University 2School of Mechanical engineering, SASTRA Deemed to be University

3National Institute of Technology Nagaland, Dimapur, Nagaland.

Abstract: Cold forging process is extensively applied for producing components like shafts, axles, gears,

crankshafts and couplings for automobiles. In order to avoid excessive forming load during cold forging

process soft steels are being developed and used. EN24, a medium carbon steel under the HSLA category

and EN 353 with relatively lower carbon content (0.17%) are cold forgeable and used for manufacturing

components. EN24 is a preferred choice for the manufacturing of shafts. EN353 is being predominantly

used for manufacturing gears, especially crown wheel and pinion is usually heat treated to improve the

wear resistant properties. Both steels having great commercial importance found wide applications in the

automotive sector. In order to reduce the energy consumption during manufacturing for reducing the cost

of production, in the recent past, liquid forging route was contemplated for producing raw materials for

cold forging of components. It has been reported that in these liquid forged EN24 and EN353 materials the

presence of spheroidized grains in the final microstructure of the components improve the fatigue life. To

assess on the effect of spheroidization on the fatigue characteristics of these chosen liquid forged materials,

simulation using ANSYS is done using the data obtained from mechanical testing. Two different heat

treatment cycles were used to spheroidize the steels.The simulation studies aredone for both materials using

Ansys AIM with constant amplitude loading which support both high cycle fatigue (stress life) and low

cycle fatigue (strain life). The mechanical properties before and after heat treatment were compared and

analyzed for EN 24 and EN353 steels. The LCF test was conducted using specimens before and after heat

treatment and the fractography images were studied. These investigations revealed that (i) the extent of

spheroidization was better, with extended holding time, (ii) EN 24 steel became softer after spheroidization

and had the fatigue life almost doubled and (iii) For EN 353 steel the spheroidization resulted in 50%

increase in the fatigue life.



Study of stochastic cutting force by using different type of advanced coated tools with

AISI52100 bearing steel

Binayak Das1, Saroj Kumar Sarangi1 1Department of Mechanical Engineering, VSSUT Burla

Abstract: AISI52100 is a high carbon-chromium steel mostly used for anti-frictional bearing material .The

effect of different cutting condition & their influences on stochastic cutting forces , surface roughness , chip

morphology , tool wear and chip reduction coefficient were evaluated. Eight tools were tested for

microhardness, adhesion quality, characterization by X-ray diffraction, energy – dispersive spectroscopy,

scanning electron microscopy, surface roughness and cutting force. The main goal of this study is to

introduce a stochastic extension of the existing cutting force model. It is shown through orthogonal cutting

force measurements how stochastic processes based on gaussian noise can be used to describe the cutting

force in material removal process. As for the tool vibration, the uncut chip thickness is also modeled in a

stochastic manner. Moreover, it is found that the random cutting co-efficient can be estimated conveniently

through experiments. Then the stochastic cutting force can be predicted numerically by combining the

stochastic model and multi-mode dynamic equation.


Numerical investigation and parametric optimization of micro-drilling using recent

metaheuristic approaches

Dilip Kumar Bagal1, , Abhishek Barua2 , Debanshu S Khamari3 , Rakesh Roshan4 1Department of Mechanical Engineering,

Government College of Engineering, Kalahandi, Bhawanipatna, Odisha, India 2Department of Mechanical Engineering,

Centre for Advanced Post Graduate Studies, BPUT, Rourkela, Odisha, India 3Department of Mechanical Engineering,

National Institute of Technology, Rourkela, India 4Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela, India

Abstract: This article represents the comparison of output responses of micro-drilling operation using Poly

Methyl Meth Acrylate (PMMA) material and also revealed that the comparative study of different advanced

metaheuristic algorithms which were applied to the Taguchi based design of the experiment. Furthermore,

a three-dimensional micro-drilling model was developed using DEFORM3D software based on the Usui

Tool Wear model, the Johnson-Cook model and the Lagrangian method. Here, the thermal, structural and

chip morphology analyses were carried out using the finite element approach. A micro-structural study was

also done for analysing the internal structure of drilled hole using Scanning Electron Microscope (SEM).

Lastly, the Confirmatory test was carried out at the obtained optimum parametric settings to validate the

results of Taguchi based metaheuristic methodologies.



An Overview of Recent End Milling Operation on MMCs

A Satpathy 1,*, SR Pattnaik1, J Rana

1

1Deptt. of Mechanical Engineering,

Veer Surendra Sai University of Technology, Burla

Abstract: In the current global competition, non-conventional machining process is having specific

interest. The different machining characteristics developed over conventional milling operation are focused

basically on quality of the product. The demand of high-performance equipment parts in various field of

industrial or academic application attracts the modification in milling process. The improvement in surface

finish, material removal rate, stress free surface, burr free textures, tool life enhancement, multi operational

system by optimizing the production time, tool replacement time in CNC end milling has a significant role.

As in the field of smart material revolution, Metal Matrix Composites (MMCs) are widely appreciated for

its light weight and good functional property, mostly used in aerospace, automobile field. This article

significantly focused on study of critical parameters on end milling operations of MMCs. The influence of

milling process parameters i.e. Spindle speed/Cutting speed, Feed rate, Cutting thickness, surface

roughness, tool wear, chatter stability, tool and work piece interface temperatures are well described. The

optimization of burr formation in end milling of MMCs still requires more attention in the field of research.

The micro structural studies of MMCs develop the surface quality including robust mechanical performance

after the end milling operation. This review presents an overall study of governing parameters in end milling

operation of MMCs.


Properties, application and synthesis of two dimensional (2D) hexagonal

boron nitride (hBN): A Review

Arka Ghosh1,*, Pankaj Shrivastava1, Nityananda Sahoo1, Syed Nasimul Alam1

1Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela,769008, India

Abstract: For one-decade two-dimensional nanomaterials such as hexagonal boron nitride, graphene, and

transition metal dichalcogenides (TMDCs) have attracted more attention. These 2D materials have

excellent thermo-mechanical, opto-electrical, and chemical properties. But due to the insulating property

bandgap with 5.9 EV of hBN, it has been widely used as a doping agent, substitute agent, and hybridization.

It has a honeycomb structure and boron nitrogen atoms are bonded by a strong covalent bond and the

distance between two hexagonal layers are bonded by a weak van der walls bond which is second after

graphene and sometimes it is also denoted as a ‘white graphene’ or as ‘van der wall (vdw)’ materials. These

extraordinary properties make hBN usable as a nanofillers in nanocomposites and nanodevice, ultra-violate

emitters, photoelectric device, and as a coating material. The complete overview suggests that to produce

high-quality and pure impurity hBN, a proper synthesis process is required. Two types of synthesis methods

are there top-down methods such as mechanical and chemical exfoliation method and the bottom down


method such as chemical vapor deposition(CVD), physical vapor deposition (PVD) and in other method

consists molecular beam epitaxy(MBE). Finally, we present the overview of 2D material in terms of

synthesis, properties and application.


Effect of Nano particle on mechanical properties of activated tungsten gas welding of

Austenite stainless steels 306L

Santha Rao.D.1, Chakravarthi M.P. 2, 1GIET(A), Rajahmundry, A.P., India

2Hindustan Shipyard limited, Visakhapatnam, A.P., India

Abstract: Stainless steels are widely used in thermal power plants, pressure vessels and automobiles

components due to their superior fracture toughness, good inter granular corrosion resistance. The Tungsten

gas welding is used for joining of steels. An attempt was made to butt joints of austenitic Stainless Steels

316L by activated Tungsten Inert Gas (TIG) welding process. The nano aluminium oxide was used as

activated flux. The process parameters such as current, volume of flow and root gap were varied and

produced different butt joints. The mechanical tests such as tensile strength, hardness, bend tests and impact

strength were conducted for evaluation of joints. The micro structural evaluation was made by scanning

electron microscopy. It is found that properties were improved with addition of nanoparticle at the joint and

observed that particles were dispersed in the weld zone.


Ultrasonic processing of effective graded acoustic material

Priyanka P Singh1, G. Nath

1

1Department of Physics,

Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha

Abstract: The persistence of complex irritating noise in the environment created by various sources has

significant contribution to today’s noise pollution in recent years. Designing of effective graded acoustic

material with cost effective and environmental aspects is a major challenge as synthetic materials

encapsulated with a lot of drawbacks. Though numerous techniques and different decorated acoustic

material are available but still it needs better raw components for further development. Mechanically stiff,

light weight and high attenuating capacity for complex non periodic harmonic wave, corn husk makes it

possible to fabricate noise shielding material with high absorption coefficient. Ultrasonically optimized

compatible acetone of 0.400 molar concentration used for maximum interfacial adhesion between

reinforced material and matrix which increases the tensile strength of 332.57 MPa to 345.16 MPa after

surface modification significantly. The noise absorption coefficient of corn husk composite was found to

be 0.94 in the audible range of frequency from 500 Hz to 3000 Hz as per ASTM/ SREN ISO 11654-2002

standard classified as Class-A type. Further, thermal conductivity of the composite increases from 0.019-


0.065W/mK with increase of temperature and decreases with content of the material explaining one of the

major cause for noise attenuation inside the material.


Evaluation of characteristics for microwave-assisted polymer coating of steel

substrate

P K Loharkar1, A Ingle

2


SVKM’s NMIMS, Mukesh Patel School of Technology Management and Engineering, Shirpur Campus,

Dhule, Maharashtra India, 2Department of Mechanical Engineering,

SVKM’s NMIMS, Mukesh Patel School of Technology Management and Engineering, Mumbai,

Maharashtra, India

Abstract: Polymeric barrier coatings are one of the most sought-after modes of protecting metallic parts

from corrosion and of ensuring a glossy appearance. In this work, pure polyester barrier coating was applied

on a steel substrate using microwave-assisted curing process with an experimental design based on L9

Taguchi orthogonal array. It included three key factors, viz. voltage, powder output from spray gun and

microwave power used for curing process with three levels of each. The heat required for curing was

achieved through electromagnetic-thermal energy conversion with the aid of a graphite susceptor. The

susceptor material was selected based on a multi-physics numerical study. The impact of parametric

variation of the microwave-assisted process on the gloss which indicates the quality of visual appearance

was quantified. In addition, assessment of corrosion resistance and impact strength was carried out to

validate the effectiveness of microwave energy as a substitute to the conventional method of curing.

Taguchi analysis showed that out of three factors used, microwave power has the most significant impact

on the gloss value. The impact strength for all the specimens except for the one coated at combination of

least levels for all the three factors was found to be over and above specified limits. Corrosion resistance

for specimens with optimum gloss was also determined to be 240 hours using standard salt spray test. The

results substantiate the feasibility of microwave-assisted process route for the industrial coating process.



Production and characterization of Al- Cu Binary Alloy produced by using Novel

Continuous Casting Proces

Prasenjit Biswas1, Deepak Patel1 , Shashank Poddar1 , Amrik Kundu1 Archana Mallik2 , Sanjeev Das1 1Advanced Metal Casting Laboratory, Metallurgical and Materials Engineering,

National Institute of Technology Raipur, Raipur, Chhattisgarh - 492010, India. 2Department of Metallurgical and Materials Engineering,

National Institute of Technology Rourkela, Rourkela, Odisha – 769008, India

Abstract: Aluminium (Al) and its constituent alloys has been consistently favoured as a promising material

for industrial applications. In conventional casting technique of Al alloys, alloying elements are

amalgamated in molten pool of Al melt followed by manual skimming. However, batch type production

has inherent mixing and casting discontinuity, which adversely affects the flexibility and cost-effectiveness,

implying a reduction in the overall efficacy of the process. In the present study, a novel continuous casting

processing route has been used to make Al-Cu binary alloy of different compositions. The developed

process utilizes a unique mechanical force convection technology along with bottom feeding of the molten

metal and alloying element. The bottom feeding along with rotational swirl ensures better amalgamation of

alloying element. Feed rates of Al melt and Al-Cu master alloy were mathematically modelled to obtain

the desired alloy composition. The microstructural characterization of the developed alloys exhibit Al-Cu

intermetallic phase invariably distributed throughout the sample, which concludes a better performing

processing route to prepare Al-Cu binary alloys.


Parametric optimizination of machining parameter in CNC turning of aluminum

based hybrid metal matrix composites

Santosh Kumar Tripathy1, Ajit Kumar Senapati2, Gopal Krushna Mohanta3

Department of Mechanical Engineering,

GIET University, Gunupur, Odisha

Abstract: In this present work influence of different maching parameters like cutting speed, feed and depth

of cut on the metal removal rate and surface finish during machining of Aluminum hybrid composite

reinforced with Al2O3 and fly ash. The design of experiment is conducted by Taguchi method with L27

orthogonal arry in which surface roughness and metal removal rate is the output response parameter. Output

responses and the adequacy of the developed model was tested using analysis of variance (ANOVA).

ANOVA results revealed that the feed and depth of cut were the major influencing parameters on the surface

roughness and metal removal rate. The result from this study shows that the application of the Taguchi

method can determine the best combination of machining parameters that can provide the optimal


machining response conditions which are the lowest surface roughness and highest metal removal rate

value.


The Microstructural-Properties improvement by manganese addition in Al-14Si

Hypereutectic alloy

J.Majhi1 , K.P. Jena1 , S.K Sahoo1 ,S.C Pattnaik1 1Department of Metallurgical and Materials engineering,

IGIT Sarang,Odisha 759146, India

Abstract: The hypereutectic Al-Si alloys as the ideal candidate for aerospace and automotive industry is

used to produce piston, engine block, cylinder head, brake fraction plate and rocker arm, which can reduce

fuel consumption and ameliorate vehicle emission .This project aims at preparation of Al-14Si alloy with

the different proportions of manganese as an additive to produce the composite by stir casting method. Stir

casting is an appropriate method for composite fabrication and widely used for industrial fabrication of

AMCs. The project aims on the effect of manganese on microstructural behavior of the composite. The

microstructure of aluminum casting alloys has been examined as a function of Mn concentration in the

thesis. The microstructures of the three different samples used in these experiments consist of aluminum

dendrites, eutectic silicon and primary silicon. Fabricated composites were tested for their mechanical

properties and wear behaviour. The cast product of hypereutectic Al-14Si alloy shows significant variation

over wear behaviour and hardness at different proportions of manganese.


The influence of RF sputtering pressure and substrate temperature on the structural,

morphological, and electrical properties of Ta2O5 films

Kiran Kumar Sahoo

Department of Physics and Astronomy

National Institute of Technology, Rourkela, Odisha,769008, India

Abstract: Radio-frequency magnetron sputtering was used to deposit Ta2O5 thin films on p-type Si (100).

During the film deposition, the RF power and Ar/O2 gas flow ratio were kept constant while the sputtering

pressure and substrate temperature were varied. The films were annealed in the air for an hour at 900 °C

after deposition. The structural, morphological, and electrical properties of the film were studied in relation

to sputtering pressure and substrate temperature. From the XRD characterization, it was observed that the

film deposited at room temperature is amorphous in nature, but when annealed at 900 °C, it takes on an

orthorhombic β – phase structure. The crystallinity of the films improved when the sputtering pressure and

substrate temperature were increased. The roughness of the film rises as the sputtering pressure increases,

according to the AFM micrographs. In addition, when the temperature of the substrate rises, the roughness

of the film increases. The C – V and I – V characteristics were used to study the electrical properties of the


films. The stretch out of the C – V curve was used to calculate the interface charge density, oxide charge

density, and dielectric constant, while the I – V studies were used to estimate the leakage current of the

films.

(Abstract ID: ICPCM21/B/01)

Prospects of ionic liquids in the recovery of critical metals using liquid-liquid

extraction technique

Susmita Prusty1, Sanghamitra Pradhan1 and Sujata Mishra1 1Department of Chemistry,

Institute of Technical Education and Research (FET),

Siksha ‛O’ Anusandhan Deemed to be University, Bhubaneswar-751030, Odisha, India

Abstract: Ionic liquids (ILs) have emerged as a riveting modern class of compounds possessing fascinating

properties such as low melting points, low toxicity, good ionic conductivity, high thermal and chemical

stability, negligible vapour pressure. The term ‘’Ionic liquids’’ is wide-ranging since it introduces diversity

in itself including many cations and anions offering tuneable properties. The popularity of ILs has reached

heights as it has paved its way towards green chemistry. This class of solvents bag its credit being a

legitimate replacement of volatile organic solvents (VOCs). Their unique properties enhance the budding

proficiencies in various fields of science including hydrometallurgy. Ionic liquids are differentiated into

functional and non-functional ionic liquids. In this paper, the properties of bifunctional Ionic liquids are

focused more.Rare earth elements like Neodymium (Nd), Europium (Eu), Terbium (Tb), Dysprosium (Dy)

and Yttrium (Y) called as critical elements have prominent role in the functioning of modern society.

However, these elements are in limited supply and techniques involved in extraction incur exploitation of

natural resources and high environmental impacts. The necessity of these critical elements in a plethora of

technological applications, provides the researchers an urge to extract traces of these metals found in wastes

of high-tech devices using different hydrometallurgical techniques. For eg. the fluorescent lamp wastes

contains a considerable amount of Europium and Yttrium. This review is drafted to showcase the advantage

of ionic liquids in extracting critical metals from secondary wastes of end-to-end life products using solvent

extraction.


Applications of ionic liquids in solvent extraction of optically active metals Gallium

and Indium-An overview

Laxmipriya Sahu1, Sujata Mishra1 1Department of Chemistry,



Abstract: In this sustainable thriving,material starved world, the importance of the technologically

important metals like gallium and indium is desperate.Gallium and indium having excellent optical


properties ,have vast uses in solar cells, semiconductors and in liquid crystals,etc. These are rarely found

as a single ore in the earth’s crust and usually are seen as by products of aluminium and zinc ores.Resources

of metals are quickly exhausting which led to the necessity of extracting metals values from low grade ores

and other secondary resources where the contents of these are very low.Ionic liquids as solvent extractants

are environmental friendly used in separation of various metal ions.These eco friendly solvents have got

immense applications in the fields of hydrometallurgy ascribable to their specific characteristics like non-

volatility, inflammability, less toxicity and appreciable ionic conductivity.Solvent extraction being low

energy feeding technique, it has capably contributed in the careful separation and recovery of these metal

ions. With most of the conventional extractants, the separation of Ga and In becomes difficult as reported

in literature.Therefore, use of the green extractants such as ionic liquids could be a response to the problem

faced for separation of these metal ions.There is urgent need for the development of novel and low carbon

recycling path which may contribute to ensure to meet the upcoming demand of gallium and indium. In this

present review ,solvent extraction of Ga and In using these ionic liquids with reference to process

optimization, selectivity and regeneration studies are looked upon in details.


Green solvents for extractive separation of Pb(II) and Hg(II) from various resources-

An update

Itishree Panda, Sujata Mishra*

Department of Chemistry,



Abstract: Heavy metals such as lead and mercury pollution are irreversible and stay for long time. The

handling of wastes come out of industries, agriculture, domestic uses is very difficult to deal with. Hydro

metallurgical technique like solvent extraction offers huge scope for the extraction, separation and

purification of these waste materials in order to extract these metal values. The feasibility of ionic liquid as

green solvents in the recovery of heavy metal ions like Pb(II) and Hg(II) from diverse resources are

alnalyzed in this review. Ionic liquids, or low temperature molten salts, have a number of advantages,

including being long-lasting and environmentally friendly green solvents. Because of their unique

properties, such as non-volatility, inflammability, low toxicity, good ionic conductivity and a wide

electrochemical potential window, their application is expanding into various fields, including

hydrometallurgy. Despite the fact that a number of papers have been published on ionic liquids, relevant

research activities in the field of hydrometallurgy have met with limited success. Because of the research

and development in this area is still in its early stages, more fundamental approaches to popularize these

green solvents in the metal processing industries will be more challenging. Ammonium and phosphonium

based ionic liquids are more stable than imidazolium based ionic liquids. Extraction process parameters

like pH, time of extraction, extractant concentration, optimum temperature, volume ratio of both aqueous

and organic phases in different extraction systems and their influences the extraction efficiency have been

summarized.



The application of microwave and infrared drying in agglomeration plants of iron

ore briquette

Rishi Sharma*, D.S. Nimaje

National Institute of technology, Rourkela

Abstract: In today’s era of modernization, where the need of steel is increasing exponentially for almost

every country. The utilization of iron ore fines and metallurgical waste for the production of steel is very

significant, as the rapid depletion of iron ore reserves continues for many past decades. The process of

agglomeration was developed for proper utilization of iron ore fines produced in the mines. The iron ore

mines produce lots of fines as metals are generally formed in the form of narrow veins with a lot of

impurities surrounding them. The metal ore which is present in form of narrow strips not as a continuous

coal bed seam, upon blasting creates lots of iron ore fines mixed with a lot of rock impurities. The

agglomeration process is developed for the utilization of such wastes and metallurgical wastes produced

from the blast furnace. In this process, iron ore fines and metallurgical wastes such as flue dust and LD

sludge are agglomerated in from of cylindrical briquette with the help of bentonite and cement as binders.

The drying of the iron ore briquette is required to provide initial strength so it can be moved to the storage

site as well to the customer with less wear and tear. But in rainy seasons and winters, this process takes

time and the briquette produced also suffers lots of wear and tear due to less initial strength. There is an

immediate need of integrating an initial drying process such as infrared or microwave in the agglomeration

plants. The use of drying processes eliminates the bottlenecks related to the unreliable availability of

sunlight in the winter and rainy seasons.

(Abstract ID: ICPCM21/C/01)

Electro-galvanization of zinc and zinc-nickel onto mild steel for improved corrosion

resistance

Rakesh Kumar Swain, Pundrikaksha Upadhyay and A. Mallik*

Electrometallurgy and Corrosion Laboratory, Dept. of Metallurgical and Materials Engg.

NIT Rourkela – 769008, India

Abstract: Pure Zinc was electrodeposited on mild steel sample at specific potential and current density

from sulphate bath and its characterization was done by various techniques. Corrosion rate of coating was

found using potentio-dynamic polarization technique. Corrosion rate of coating was improved using alloyed

coating (zinc-nickel). The main objective was to replace hot-dip galvanization technique with electro-

galvanization so as to reduce thickness of coating and also to do away with problem of heat affected zone

arising in hot dip galvanization, further enhancing the corrosion resistance of electrogalvanized coating by

using alloying elements. Pure zinc was electrodeposited on mild steel at -1.45 V, -1.55V, -76 mA and -97

mA. Thickness of coating was measured using surface profilometer. SEM images and XRD data were taken

and analyzed and finally corrosion rate was calculated using tafel extrapolation. Further zinc-nickel was

electrodeposited on mild steel sample at -1.45 V and -1.55 V and corrosion rate of coating was compared


with pure zinc coating. For pure zinc coating as deposition potential increases from -1.45 V to -1.55 V the

corrosion resistance of coating increases. With addition of alloying elements such as nickel the corrosion

resistance of coating was slightly increased and also coarse grain structure was obtained when SEM images

were compared.


Single step electrodeposition of highly CuInSe2 thin films with rich Indium selenide

surface over layer: effect of surfactant

Priti Singh1*, Ramkumar Chandran2, Sanjeev Das3, Archana Mallik1 1Electrometallurgy and Corrosion Laboratory, Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela -769008, Odisha, India 2Department of Science & Humanities,

Excel Engineering College, Namakkal-637303, Tamilnadu, India 3Advanced Metal Casting Laboratory,

National Institute of Technology, Raipur - 492010, Chhattisgarh, India

Abstract: In this work, we report on the electrodeposition of CuInSe2 (CIS) thin films with In2Se3 rich

surface by a single step deposition technique. It was observed that the In-content deposited in CIS can be

improved by the addition of SDS. The presence of In-Se rich layer was confirmed by electrochemical,

compositional and Raman spectroscopy analysis. The photoelectrochemical properties of the as-deposited

CISe thin films were found to be enhanced due to the presence of In-Se rich superficial layer. The presence

of In-Se layer over CIS may act as a pn-homojunction which may be attributed as the primary reason for

the improvement in the PEC properties.


Effect of Zircoat-M coating on SS304L for designing high temperature process

chamber in Selective Laser Sintering

Divya Sadhana A*, Udaya Prakash J, Jebarose Juliyana S


Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamil Nadu,

India.

Abstract: Selective laser sintering (SLS) process is one of the most useful additive manufacturing

techniques used, because it has potential to easily produce complex shapes. The quality of parts made by

SLS process directly depends on controlling heat transfer to powder bed. High temperature process chamber

is specially designed for high temperature plastics and metal powders (PEEK and Aluminium). Zircoat - M

is a Zirconia-rich refractory coating compound that has a high proportion (63%) of Zirconia and is best

suited for ferrous and non-ferrous metals and refractories, with the exception of aluminium. Zircoat-M

protects metals and refractories from corrosion erosion and flue gases escaping from heating chambers. An

attempt was made to develop a high temperature build chamber and pre-heating system to manufacture


prototypes using materials having maximum melting/ fuse temperature of 800o C. PEEK and Aluminium

may be used to produce light weight products for multiple sectors such as bio-medical, automobile and

aerospace. A high temperature resistant stainless steel 304L grade was chosen, along with SS304L coated

with Zircoat-M for Build chamber and Pre-heating system. Experimental analysis such as Thermal

Expansion, Thermal Conductivity and Corrosion resistance for the coated and uncoated specimen was

carried out. Coefficient of Linear Thermal Expansion of uncoated specimen is 16 x 10-6 /°C and coated

specimen is 14 x 10-6 /°C. Thermal conductivity for the Ceramic coated ZIRCOAT-M on SS304L for 100°

C is 0.280W/mK. Thermal conductivity of SS304L at 100°C is 16.3 W/mK. Both the specimen has very

good corrosion resistance.


Characterization and mechanical performance of TIG cladded in-situ TiC-TiB2

composite coating fabricated on AISI304 stainless steel

Neeraj Kumar Gupta, Pyla Kaushik Raj*, Malaya Kumar Debta, Manoj Masanta


NIT Rourkela-769008, Odisha, India

Abstract: Tungsten inert gas (TIG) cladding is a surface modification technique used to deposit hard and

wear resistant coating to improve the operational life of an engineering component. In the present work, to

improve the mechanical performance of AISI 304 stainless steel, in-situ TiC-TiB2 composite coating was

fabricated through the TIG cladding route using pre-placed Ti and B4C powder mixture at a 3:1 weight

ratio. The single line clad width and height was measured from the cross-sectional SEM images of the clad

track. The microstructure of the clad layer was analyzed through SEM images; however, EDS analysis was

accomplished to study the distribution of different elements present in the clad layer. An almost uniform

clad layer with minor pores at the boundaries of the clad track was observed. The variation of micro-

hardness values along the depth of the coating was evaluated for the clad layers deposited with different

arc scanning speeds. Average micro-hardness was recorded in the range of 800-1000 HV0.05, significantly

higher than the substrate hardness.


Electrical Properties of CuO Nanoflakes/Au Schottky Junction Under Photo

Excitation

Gyanadeep Mallik*, Satchidananda Rath

School of Basic Sciences,

Indian Institute of Technology Bhubaneswar, Bhubaneswar, Jatni, 752050

Abstract: The innumerable applicability of cupric oxide (CuO) nano-materials has been reflected in various

recent studies. In this work, we have hydrothermally synthesized two different types of copper oxide (CuO)

nano-flakes (NFs) and have analyzed their structural, optical, and electrical properties. The effects of

different reagents on the properties of the NFs have been investigated. The field emission scanning electron


microscopy (FESEM) and energy dispersive x-ray spectroscopy (EDS) analysis of the samples have

revealed the formation of distinct two-dimensional CuO NFs of various sizes. The photo-activity of the

samples has been verified by fabricating a device {indium tin oxide (ITO)/CuO/gold (Au) finger contact}

for both the samples and comparing their current-voltage (I~V) characteristics under dark and illumination

conditions. Moreover, their optical band characteristics have been analyzed using VU-VIS absorption

spectroscopy.


Growth mechanism of aligned porous oxide layers on titanium by anodization in

electrolyte containing Cl-

Rinmayee Praharaj1, 2*, Snigdha Mishra1, Tapash R. Rautray2 1Dept. of Physics, Berhampur University,

Bhanja Bihar, Berhampur – 760007, Odisha, India 2Biomaterials and Tissue Regeneration Laboratory, Centre of Excellence in Theoretical and Mathematical

Sciences,

Siksha ‘O’ Anusandhan University, Khandagiri Square, Bhubaneswar – 751030, Odisha, India

Abstract: In recent times, fluoride-free electrolytes based titanium dioxide nanotubes (TNTs) are

considered as the fourth generation synthesis method employing HCl, HClO4, H2O2 solution and their

mixture. In the present investigation, aligned porous oxide layers were achieved using chloride-based

electrolyte in combination with polyethylene glycol and hydrogen peroxide through electrochemical

anodization. In this method, H2O2 was used instead of H2O as an oxygen source. It is observed that

oxidation of titanium is rapid in PEG/NH4Cl/H2O2 electrolyte. The fabricated oxide layer showed an

amorphous structure. These amorphous porous oxide layers were then transformed into crystallized form

by annealed at 500 ºC for 2h. The structural, morphological, and elemental analyses were carried out by

XRD, FESEM, and EDAX. The XRD pattern confirmed mixed phases of titania, and the average crystallite

size was 31.72 nm. FESEM morphologies show aligned porous oxide arrays with smooth walls, and bundles

of nanostructures were also observed. The EDX spectra indicated that the main components are O and Ti,

with low content of Cl. It was observed that anodization in a chloride-containing organic electrolyte under

a specific condition can be used to obtain higher-order titania nanostructure.


An Efficient Means for the Synthesis of Reinforced Hydroxyapatite Nanocomposite:

Electrodeposition Route

Bijay Kumar Karali*, Manila Mallik, Gautam Behera

Department of Metallurgy and Materials Engineering,

Veer Surendra Sai University of Technology Burla, Sambalpur, Odisha-768017, India

Abstract: HA (Hydroxyapatite) is found in tissues like bone and teeth, making them appealing towards

replacing these tissues with synthetic HA. It has excellent biocompatibility, osteoconductivity which


resembles the inorganic component found in bones. But due to its poor mechanical properties, HA is not

particularly suitable for implants designed to support the weight. Hence, it is necessary to give a coating of

hydroxyapatite on an implant. The implant remains interim or everlasting in our body. Deposition

techniques for hydroxyapatite include sol-gel, sputter coating, vacuum deposition, plasma spraying,

electrodeposition, electrophoretic deposition, pulsed laser deposition, biomimetic deposition and hot

isostatic pressing, etc. In the electrodeposition technique, it is easy to maintain the potential, resulting in

consistently high crystal formation at low temperatures/room temperature even with low residual stresses.

Electrodeposition is a method of in-situ deposition of metal that uses a salt solution in which the material

to coat gets dipped. The coating of pure HA on the surface of the metal accompanies a low bonding strength

which makes them less effective in terms of mechanical properties. To improve the mechanical properties

of HA, materials like Carbon Nanotubes (CNTs), TiO2, ZrO2 and Graphene, etc. are employed. This article

reviews the deposition of reinforced HA nanocomposite over metallic implants using electrodeposition

techniques.


An Experimental study on effect of titanium oxide coated heater substrate on pool

boiling enhancement

Abhishek Sinha*, Satya Prakash Kar, Abhilas Swain 1Kalinga Institute of Industrial Technology, Patia, Bhubaneswar Odisha- 751024, India

Abstract: The present experimental study indicates the effect of coating on the enhancement of heat transfer

during pool boiling. For this, the aluminum heater substrate of 22mm * 20mm was coated with titanium

oxide using high velocity oxy flow (HVOF) method. The coated surface was then used to heat aqueous

solutions of acetone, isopropanol, ethanol and distilled water respectively. Simultaneously, heat transfer

coefficient (HTC) and excess temperature (dT) were also obtained using aluminum heater substrate without

coating. The boiling parameters during coating and non-coating were kept same so that the HTC and dT

obtained can be used for comparative study. The heat transfer parametric study was then conducted and the

results were presented in graphical form.



Nanomaterials decoration on commercial cotton wound dressing bandages for pain

and infection management

Rohit Parkale1, Priyanka Pulugua1, Prasoon Kumar1, 2* 1Department of Medical Devices,

National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Gandhinagar-

382355, Gujarat, India. , 2Department of Biotechnology and Medical Engineering,

National Institute of Technology, Rourkela 769008, Odisha

Abstract: Cotton gauze bandages (CGB) are one of the most widely used wound dressing materials. These

bandages are placed over a wound site to keep it clean and facilitate the healing process. However, it is

used along with antibacterial agents (ointment) to prevent post-dressing infections. Further, other

medications have to be orally administered for managing pain and wound healing. Therefore, in the current

work, nanomaterials having drug releasing and antibacterial properties is coated onto the commercial cotton

wound dressing bandages to minimize the local pain and post-dressing infections at a wound site. We have

fabricated diclofenac sodium (an anti-inflammatory drug) loaded biodegradable, polycaprolactone (PCL)

nanofibers mat through electrospinning and deposited it over the surface of a CGB that was initially coated

by chitosan and decorated with ZnO nanoparticles. Chitosan coating over the CGB provides the

antibacterial properties while the drug loaded nanofibers mat releases diclofenac sodium under a simulated

drug release condition. In addition, the decorated ZnO nanoparticles have ultra violet radiation blocking

properties. The modified CGB was characterised by SEM, EDAX, DSC, UV spectroscopy, and FTIR. The

antibacterial property of the bandage was evaluated through zone of inhibition test during the anti-bacterial

study. Thereafter, drug release and degradation studies revealed the modified bandage could provide

sustained drug release for 15 days, perhaps through surface erosion and later bulk degradation mechanism.

Thus, the nanomaterials decorated CGB can be a better alternative to native CGB for wound dressing

applications.


Cadmium sulphide thin films deposition and characterization for device applications

A Alam1, S kumar2*, D K Singh3 1Department of Physics,

Binod Bihari Mahto Koyalanchal University, Dhanbad- 828130, India 2Department of Physics,

Chaibasa Engineering College, Kelende, Jhinkpani, Jharkhand-833215, India. 3Department of Physics,

P.K. Roy Memorial College, Dhanbad, Jharkhand-826004, India.

Abstract: Metal chalcogenides (sulphide, selenides and tellurides) are studied in the form of thin film and

group II- VI semiconducting material is more attracted towards thin film by researcher because of their


applications in the field of photovoltaic cells, photoconductors, optical filters, solar cells, sensors, variety

of optoelectronic devices, etc. Cadmium sulphide is one of the members of II-VI semiconducting material

and has energy bandgap of 2.42 eV. It is important because of their large applications in the area of

optoelectronic devices, solar cells, LED, photoconductors, etc and it is also useful for window layer in high-

efficiency thin film solar cell based upon CdTe or CuInSe2. It can be prepared by several techniques like

chemical bath deposition (CBD), electrodeposition, thermal evaporation, spray pyrolysis, molecular beam

epitaxy, etc. Our team has prepared CdS thin films over Molybdenum substrate using non-aqueous medium

by CBD method. The electrolyte was prepared by taking AR grade of cadmium acetate (0.24M) dissolved

with ethylene glycol and ethanol (ratio=1:2) and temperature of the electrolyte was maintained at 1300 c

with 220 rpm. Molybdenum substrate was dipped into the electrolyte using a rigid support and thiourea

(0.35M) was influence on the prepared electrolyte. The deposition of film was carried out for 20 minutes

and it is observed that deposited films are good adherent to substrate, free from voids, pin holes, pits. The

solid state characteristics of the as deposited films were carried out by XRD, FESEM, EDS, AFM and

FTIR. The prominent peak of the deposited film is observed at θ=26.240 with (002) plane which indicates

that the film have crystalline hexagonal structure. Using AFM, RMS roughness value equal to 92 nm.

Compositional analysis peaks reveals the availability of Cd and S.


Application of thermal spray coating in an aerospace industry: A Review

Rakesh Roshan1*, Swadhin Kumar Patell, Narasingh Deep2, Ajit Behera1 1Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela, India 2Department of Mechanical Engineering,

Veer Surendra Sai University of Technology, Burla, India

Abstract: In the current scenario, Thermal spray coating holds a good position in the aerospace industry

due to its several advantages such as corrosion resistance, wear resistance, thermal insulation, abradable

and abrasives. A brief explanation about the application of thermal spray coating in the aerospace industry

has been discussed here. Thermal Spraying contains a group of different coating processes. Various metallic

or non-metallic materials are coated in the substrate in the form of molten or semi-molten conditions. The

coating materials are to be used in the form of wire, powder, molten, or ceramic rods. The background

history of thermal spray coating in the aerospace industry and their development in the present research are

mentioned in detail. The different coating processes with various coating materials are used in a particular

part to get a specific advantage. All the detailed thermal spray coatings used in the aerospace industry are

explained and can help the selection of different coating processes and their coating materials.


(Abstract ID: ICPCM21/D/01)

Dissimilar joining of Titanium alloy to pure Aluminum using Friction Stir Welding

(FSW) Process

Ambadas1, 2, Adepu Kumar1*, G Rajasingh2, Mugada Krishna Kishore3 1Department of Mechanical Engineering,

National Institute of Technology-Warangal-506004, Telangana, India. 2Defence Research and Development Laboratory (DRDL),

Kanchanbagh, Hyderabad-500058, Telangana, India. 3Department of Mechanical Engineering,

Sardar Vallabhbhai National Institute of Technology-Surat-395007, Gujarat, India.

Abstract: In the present investigation, two widely used and difficult to weld aerospace metallic materials

such as Titanium alloy (Ti6Al4V, ELI) and Pure Aluminum are experimented to joint by friction stir

welding(FSW) process. As these two materials have wide difference in thermo mechanical properties, it

was a challenging task to establish a dissimilar metal joint. The successful dissimilar joint of Ti to Al is

achieved after a series of pilot experiments with a lap joint configuration using conical shaped Tungsten

carbide tool. The satisfactory joint is achieved with maximum joint strength 89MPa. Test conditions were

with tool offset towards Aluminum side and 1° tool tilt angle with vertical at spindle speed of 1200 rpm

and feed rate of 40 mm/min. Further characterization was done by macrostructure, micro structure, micro

hardness tests, scanning electron microscopic(SEM) analysis using EDAX and EDS.


Influence of thermo-mechanical treatment in Austenitic and Ferritic field condition

on microstructural and mechanical properties of Reduced Activation Ferritic-

Martensitic steel

P. Prakash

Department of Mechanical Engineering

Sree Vidyanikethan Engineering College, Tirupati, Andhra Pradesh

Abstract: 9Cr-1W-0.06Ta Reduced Activation Ferritic-Martensitic (RAFM) steel have been investigated

in normalized and tempered (N+T) condition and for thermo-mechanical treated steel (TMT) in Austenitic

and ferritic field conditions. RAFM steel in N+T condition is having tempered martensitic structure (BCT)

but it is unstable and it will transfer into a stable BCC in structure during a long period of time subjected to

high temperatures. To make it stable structure, the steel is subjected to austenitization at 1423 K for 10 min,

and then cooled in still air (» -1 K/s) to 973 K and this temperature was maintained for two hours in furnace

to fully convert austenite in to ferritic phase then the steel is subjected to 25% reduction in thickness by hot

rolling. Optical, scanning and transmission electron microscopic investigations have been carried out to

assess the microstructural changes of the steel N+T and TMT conditions. Hardness, tensile and creep

studies are carried out and the results were correlated with the microstructural studies. TMT processed steel

resulted in coarser prior austenite grains and exhibited ferrite in phase with fine distribution of M23C6 and


MX precipitates where as N+T condition is subjected to tempered martensitic structure with coarser M23C6

and MX precipitates. Even though ferrite phase present in TMT processed steel it exhibits higher tensile

and creep strengths due to the presence of high dislocations and finer distribution of precipitates than the

N+T condition.


An effective way of reducing the wax pattern shrinkage to improve the dimensional

accuracy of the investment castings

S R Pattnaik*, M K Sutar

Dept. of Mechanical Engineering,

Veer Surendra Sai University of Technology, Burla,

Abstract: Investment casting (IC) process, also known as precision casting technique is a widely known

method around the world to produce dimensionally accurate metal parts bearing very good surface finish.

The process utilizes a sacrificial wax pattern for getting a hollow mould for casting and its characteristics

are ultimately transferred to the cast parts. This wax pattern usually undergoes shrinkage on solidification

which produces dimensional variation in the cast parts. In the present research work, an attempt has been

made to decrease the linear shrinkage of the wax pattern without affecting its surface texture by arresting

its shrinkage characteristics owing to addition of few materials such as filler and a resin compatible to IC

waxes. The materials chosen for the conduct of experiments are paraffin wax (40%), microcrystalline wax

(10%), polyethylene wax (20%)and teraphenolic resin (30%). Further, the process parameters, namely, die

temperature (DT), wax injection temperature (WIT) and holding time (HT) of the IC process are also varied

at three different levels and experiments were conducted as per Taguchi’s L9 orthogonal array to determine

the optimum parametric levels. The results revealed that there was considerable reduction (4.5%) in wax

pattern shrinkage by the aforementioned materials to the IC waxes.

(Abstract ID: ICPCM21/E/01)

Analysis of tribological and mechanical characteristics of date palm petiole/epoxy

composites

Janaki Dehury1, Jyoti Ranjan Mohanty2, Abhilash Purohit1, Swarnaprabha Dehury3

Abstract: This paper gives a brief idea about the mechanical and tribological study of acrylic acid treated

randomly oriented date-palm petiole fiber reinforced epoxy composites. In this paper five number of

composite are fabricated by simple hand layup technique with varying the fiber concentration as 5%,

10%,15% ,20%and 25% respectively. To improve the mechanical properties the date palm fiber are

chemically treated with NaOH followed by acrylic acid. The manufactured composites are examined as per

ASTM standards to evaluate mechanical (flexural strength, tensile strength and micro hardness) and

tribological properties .To evaluate the impact of distinct control parameters like (sliding distance, sliding

velocity ,fiber content and normal load) on specific wear rate of composites, sliding wear test are performed

on a pin on disk wear analyzer. Tensile test result shows that composite has better properties at 20% fiber


loading. Further it is observed that on increasing the fiber concentration the specific wear rate of composites

decrease. To depict the influence of absorption of water on mechanical characteristics, the specimens were

soaked in distilled water for 10 days before the testing. It was noticed that the water absorption rate depends

upon the percentage content of fibre.Mechanical properties of the composites were weakened after the

absorption of water. The analysis of microstructure and failure mechanisms of composites was done using

Scanning electron microscopy


Synthesis and characterization of undoped and Er-doped ZnO nanostructures

prepared by a chemical method

Dhirendra Kumar Sharma*, Sweta Shukla

Department of Applied Sciences,

KIET Group of Institutions, Delhi NCR Ghaziabad, Uttar Pradesh,

Abstract: Magnetic ordering in the non-ferromagnetic substances (like; ZnO) is intriguing and could be

more interesting to investigate if other defect states are incorporated by the non-magnetic ion doping. We

have investigated the effect of Yb doping on the structural, morphology, optical and magnetic properties of

ZnO. Different Yb concentrations were applied to prepare the solid solution of Zn1-xYbxO (with x = 0.00,

0.01 and 0.05) using the co-precipitation route. X-ray diffraction (XRD), energy-dispersive X-ray

spectroscopy (EDX), high resolution scanning electron microscope (HR-SEM), UV–visible spectroscopy

and vibrating sample magnetometer (VSM) have been employed to characterize the samples.

Amalgamation of Yb in ZnO has manifested the lower angle shifting of XRD peaks and consequently

increased lattice parameters of ZnO are observed. UV-visible absorption spectroscopy investigations have

established the net decrease in the optical band gap energy of ZnO as a function of Yb defect levels in the

compound. HR-SEM study revealed that the insertion of Yb ions in ZnO could transform the spherical

structures into agglomerated non-spherical structures. The magnetic measurements have revealed the

diamagnetic ordering in the pure ZnO which, ultimately, transformed into ferromagnetic ordering via

incorporation of Yb defect states.


Stopping force of 0.2-3.0 MeV/n heavy ions in elemental materials

Sonia Rani*, Sunil Kumar, P.K. Diwan

Department of Applied Science,

UIET, Kurukshetra University, Kurukshetra-136 119, India

Abstract: Stopping force formula for heavy ions with Z = 3-36, in the energy region ~0.2-3.0 MeV/n, is

developed. For this, fitting parameters involved in effective charge parameterization of Hubert et al.

formulation are modified. Other parameters, used for stopping force calculations, are computed by utilizing

Ziegler’s fitting formulae. To check the reliability/validity of the present stopping force formula, the

computed results are compared with the recently measured values. The comparison reveals that the


predicted values are in good agreement (within experimental errors) with the recently measured values. The

study is significantly important because low energy ions are widely used in material science particularly in

ion implantation/irradiation along with other fields like atomic and molecular physics, health physics, bio-

science and medical science etc. In addition, the study is also important to understand the fundamental

aspects involved while interaction of ion with matter. The predicted values based on the present formula

can be used as an input parameter for all those experiments where these combinations are used.


Ratcheting Fatigue Life Prediction of High Strength Low Alloy Steel Using an

Energy-Based Approach

Pushpendra Kumar Dwivedi*, Krishna Dutta

Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela 769008, India

Abstract: High strength low alloy steel (HSLA) is extensively used in automotive components and

engineering structures where the role of fatigue damage is a critical issue. Predominantly, asymmetric cyclic

loading is imposed on the automotive structures that cause ratcheting deformation. A proper estimation of

fatigue life is therefore essential to safeguard the automotive components. Different methods of fatigue life

estimation are available in the current literature. However, investigations on fatigue life estimation in

presence of ratcheting deformation are quite less. This paper aims to predict the ratcheting fatigue life of

investigated steel with the combined effect of mean stress and ratcheting strain using a stress-strain

hysteresis loop energy-based life prediction equation. A set of uniaxial ratcheting tests are carried out using

a ±100 KN servo-hydraulic universal testing machine at room temperature. The applied stresses are

controlled in two ways: at constant mean stress with varying stress amplitude, and at constant stress

amplitude with varying mean stress. The obtained experimental results exhibit a sharp reduction in fatigue

life associated with an increase in strain accumulation, both for increasing mean stress and/or stress

amplitude. A continuous cyclic softening is noted till the final failure of the specimens. After the fatigue

tests, fractured specimens are alnalyzed using a field emission scanning electron microscope and it is

observed that the fracture surfaces contain typical striations and secondary cracks based on the loading

conditions; in association, enlarged dimples are noticed at the overload failure region. An energy-based life

prediction model is adopted from the existing literature and subsequently modified to combine the two

damage parameters: one is mean stress-based and the second is ratcheting strain-based damage parameter,

which reflect combined fatigue damage. The newly proposed life prediction equation shows good

agreement with the current experimental results.



Structural, optical and multiferroic behavior of transition metal based double

perovskite oxides

S. Mohanty1, S.Behera

2

1Department of Physics, Trident Academy of Technology, Bhubaneswar. 2Department of Physics, Centurion University of Technology and Management, Odisha, India.

Abstract: The polycrystalline samples of double perovskite structure A2FeNbO6(A=Mg,Ca) were

synthesized by high temperature (11000C) solid state reaction route. The room temperature XRD pattern

confirmed the formation of new compounds with tetragonal crystal structure. The surface morphology

(shape, size and distribution of grains and pores) of the pellet sample was recorded using scanning electron

microscope (SEM). The optical absorption in the entire visible range with small band gap of these materials

aligned them for photovoltaic applications. The existence of both ferroelectric and ferromagnetism

properties in the materials at room temperature confirms their multiferroic behaviors. The optical band

gap has been calculated from the spectroscopic analysis, which enables the photo voltaic device application

of the material.


Development and Analysis of Friction Characteristics of Coir Fiber Added Organic

Brake Pad Composite

R.Rajan1, Y.K.Tayagi2, Anshuman Das3, Pawan Kumar4, Saroj Kumar Patel5

1,2,3 Department of Mechanical Engineering,

DIT University, Dehradun, Uttarakhand


MITS, Madanapalle. 5Department of Mechanical Engineering,

NIT Rourkela.

Abstract: Brake pads in automobiles are made of composite materials composed of more than six different

ingredients. In the present scenario, investigation of new materials to replace the asbestos has been started.

Today’s friction brake materials consist of abrasives, friction modifiers, fillers, reinforcements, and binder

materials. The choice of the friction material has an important impact on a vehicle’s braking performance.

In the present study, dried coir fiber is used as a new material in brake pad composite. Coconut coir is

ground to obtain the fiber particles. Different amount of coir is used in the mix of other regular ingredients

in brake pads. In this experimental study, the change of friction coefficient, the load on friction surface and

the amount of wear are recorded. The composite was prepared by hand lay-up method. In this method, a

steel mold of area 75x25 mm2 with thickness 12 was utilized. The compound is stir thoroughly till it became

homogenous solution. Three types of brake pads with 10%, 20%, and 28% coir fiber were made for

mechanical and tribo testing. In pin on disc test, test samples with 28% coir fiber withstand best sliding


wear characteristics under 4.9N load with minimum wear of 159 microns. For abrasion wear testing under

sand wear test sample with 10% coir fiber has minimum mass loss under 1kg and 2kg load applied. The

tested samples have hardness more than half the commercial brake pads even though the samples are

prepared by hand lay-up method.


Study on influence of reinforcements on different properties of Aluminium Hybrid

Metal Matrix Composites

Hariprasad.M1 , P.Venkata Ramaiah1


Sri Venkateswara University College of Engineering, Tirupati, AP, India.

Abstract: The present paper focussed on study of influence of reinforcements on different properties of

Aluminium Hybrid Metal Matrix Composites. Aluminium hybrid Metal Matrix Composites are fabricated

using the Stir Casting technique by reinforcing with three Nano reinforcements such as boron carbide(B4C),

aluminium oxide (Al2O3) and CNT. These reinforcements are mixed combinedly for a weight percentage

and three composite samples (C1, C2, C3) are prepared. Further, the tests are conducted on composites

tensile strength, impact strength, hardness and electrical conductivity to evaluate the effect of

reinforcements on tested properties of composites. And also, microstructural study on the composites is

carried out by using a Scanning electron microscope (SEM) to analyse the distribution of particles in the

casted composites.


Fabrication of nano-La2O3 dispersed W-Zr alloy by mechanical alloying and

conventional sintering

Bappa Das*, Anshuman Patra



Abstract: The present investigation aims to fabricate 1.0 wt. % nano-La2O3 dispersed W98.5Zr0.5 (wt.

%) alloy through high energy planetary ball milling for 20 h followed by conventional pressureless sintering

at 1400 °C for 2 h in an inert (Ar) atmosphere. The mechanically milled powders and the sintered alloy was

evaluated using X-ray diffraction (XRD), Particle size analyzer, Scanning electron microscopy (SEM). The

minimum particle size of 425.68 μm was observed after 20 h of mechanical alloying compared to 682.39

μm at 0 h. The maximum hardness and compressive strength of 5.74 GPa and 1.01 GPa was observed in

the sintered alloy due to grain refinement and dispersion strengthening.



Dissimilar welding between AISI 2205 duplex and AISI 321 austenitic stainless

steel using GTAW process

S.Praveen kumar1, Naveen Kilari 2

1Research Scholar, Dept. of M.E, JNTUA, Ananthapuramu, A.P, India.

2Principal, VEMU Institute of Technology, P. Kothakota, A.P, India.

Abstract: In this research work, dissimilar welding of AISI 2205 duplex stainless steel (DSS)

and AISI 321 austenitic stainless steel (ASS) were welded by gas tungsten arc welding (GTAW) process.

In this work, two types of filler materials duplex stainless steel (ER2209) and austenitic stainless steel

(ER309LMo) were used, and the effects of these weldability impact strength tensile strength and bend

strength were studied. Tensile strength results showed that all failures occurred in AISI 321 parent metal

side. Bend tests were performed in both filler materials and no cracks were formed, and from this, it was

observed that the ductility of the metal and weld quality were good. The main purposed part of this work is

to compare AISI 2205 with AISI 321, the recommendation of filler material and base metal. This work is

proposed for dissimilar welding applications in heat ex-changers, oil and gas extractions processing units.


Investigating the Mechanical Properties of Ti-Ni-Fe based Intermetallic alloys at

various length scales

Subha Sanket Panda1*, Jayant Jain2, Sudhanshu Shekhar Singh1

1Department of Materials Science and Engineering, IIT Kanpur 2Department of Materials Science and Engineering, IIT Delhi

Abstract: Intermetallics are a unique class of metallic materials which possess attractive properties such

as excellent high temperature strength, high oxidation & corrosion resistance, low material density and high

melting point. The long-range order present in Intermetallics restricts atomic mobility which leads to slower

diffusion; making them useful for high temperature applications. However, their enormous potential to

improve performance remains largely unused owing to limited room temperature ductility and poor

workability. For past several decades, a great deal of efforts has been devoted to understand the underlying

deformation mechanisms thus ensuring the development of ductile Intermetallics. Whilst binary B2

intermetallic compounds were studied extensively, few ternary /pseudo-binary have been investigated e.g.,

Ti-Mo-Al, Ti-Al-Nb etc. The current work emphasizes on deformation characteristics of Ti based ternary

intermetallic such as Ti-Ni-Fe at various length scales ranging from macro to nano. It is now well known

that addition of Fe to Ti-Ni stabilizes the high temperature B2 phase to room temperature. A comprehensive

study of other intermetallic phases on the deformation of B2 phase has been done in the present work.

Microstructural characterization and phase identification were carried out using standard characterization

techniques such as XRD, SEM and Optical Microscope (OM). Mechanical properties were studied using


bulk compression, Vickers micro indentation and nano indentation. Elastic properties, hardness, plastic

strain and fracture toughness were evaluated to understand the underlying mechanisms.


Double shear performance of the hybrid aluminum metal matrix composite Al6063-

SiC/Al2O3 fabricated through electromagnetic stir casting process

Swastik Soni1, Shyamlal Verma2

Abstract: Shearing is the deformation of any materialistic substance whose internal surfaces are parallel

to each other and slide against each other. The shear force is applied in a perpendicular to the surface

direction. One part of the structure is pushed one way, while the other is pushed the other way. The structure

is divided into two halves when a shear force is applied to a spot. This study aims at the production and

double shear characterization of Hybrid metal matrix-reinforced composites where aluminum alloy 6063

was taken as the matrix material and hard ceramic Silicon Carbide (SiC) and Alumina (Al2O3) were taken

as the micro reinforcements. The microstructure characterization of the hybrid composite was found to be

uniform. Hybrid composites with aluminum matrix (12% SiC-Al2O3 reinforcements) have maximum

engineering skill and comparatively high shear strength.


Synthesis of Graphene Decorated Silicon Nano Composites and Their Characterizations

Tapan Dash1*, Binod Bihari Palei2 1Centurion University of Technology and Management, Odisha, India 2CSIR-Institute of Minerals and Materials Technology, Odisha, India

Abstract: We successfully prepared Si-graphene (0.2-0.6 wt%) composites by 8 hrs of dry planetary ball

milling. XRD of Si-graphene composites show peaks due to both Si and graphene. In Raman spectra along

the peaks of Si different peaks for carbon such as G, D and 2D were observed in the composites. Composites

with 0.4-0.6 wt% graphene have found to exhibit bi-layer type of microstructure. Purity of composite was

confirmed from EDS analysis showing only peaks of Si and C. XPS, HRTEM and SAED results further

confirm the successful formation of Si-graphene composites. XPS spectra for typical Si-graphene (0.4 wt%)

composite show peaks due to Si-C, Si and C-C. When graphene (0.2-0.6 wt%) is added to Si, it is observed

that the specific surface area is significantly improved from 95 to 465 m2g-1. It is marked that Si with 0.4

wt% graphene shows 8 % more electrical conductivity than pure Si.



Reduced Graphene Oxide Synthesis by Dry Planetary Ball Milling Followed by Arc

Plasma Treatment of High Pure Graphite

Prakash Chandra Sahoo1, Tapan Dash1*, SubashCh Mallick2

1Centurion University of Technology and Management, Odisha, India 2LN Indtech Services Pvt Ltd, Bhubaneswar, Odisha, India

Abstract:We have successfully prepared a challenging and wonderful material, reducedgraphene oxide

(RGO)/graphenewith improved quality from high pure graphite (HPG) efficiently by planetary ball

millingprocess followed by arc plasma treatment under hydrogen atmosphere. Graphene oxides (GO) have

been synthesizedwith varying degrees of oxidation by planetary ball milling route by milling HPG between

3-8 hr. The lowest C/O ratio (0.965) was observed for an 8hr ball milled sample (EXPT-3). The as-prepared

GOs are taken for only five min. of arc plasma treatment under hydrogen atmosphere. As the typical GO

(EXPT-3, prepared by 8 hr ball milling)was undergone reduction by plasma treatment for producing typical

RGO (EXPT-6) sample, it wasfound that the C/O ratio increased from 0.965 in GO to 14.86 in RGO. RGO

shows a hexagonal structure with well-defined crystallinity nature. Bi-layered and transparent types of

structures were found in RGO sample. Typical RGO sample (EXPT-6) exhibits extraordinary BET surface

area and electrical conductivity values of 1230.0 m2/g and 4.587x103 S/cm, respectively than that of HPG.


Influence of Precious Slag Ball as Fine Aggregate in Construction

Jagadish Mallick1, Pratap Kumar Pani2

1Assistant Professor, Civil Engineering Department,

PMEC Berhampur. 2Professor, Civil Engineering Department,

IGIT, Sarang.

Abstract: In this day and age, expanding development movement, contamination, and abuse of regular

assets are significant concerns. Using current waste as an inadequate substitute for mortar is a phase towards

setting up an ensured and sound environment. Toxic waste and prosperity vulnerabilities connected to the

important and enhancement activities. PS Ball signifies Precious Slag Ball, a quick material arranged

achievable by the quick cooling of the slag that is ready all through the steelmaking framework (SAT) by

Slag Atomizing Technology. PS Ball is gentle to the climate material from steel producing waste. This

article examines the effects of different proportions of reused fines from the steel region. This journal

explored the influences of displacing sand with altered measures of PS Ball on the compressive strength

properties of the mortar. By weight of the fine total utilized, the level of substitution bite the dust sums

were 9, 12, 15, 18, 27, and 36%. Tests were finished up on the properties of the new and solidified mortar.

As far as mechanical properties and solidness markers, all test outcomes show that blends containing these

PS balls perform better compared to basic concrete reference mortars. The rundown and conversation of

this report ought to give new realities and experiences into the application.



Ceramic hybrid composites for heat dissipative aerospace materials

Laxminarayan Rout1, Debasmita Mishra1


Veer Surendra Sai University of Technology, Burla.


Veer Surendra Sai University of Technology, Burla.

Abstract: Materials for aerospace are getting lighter and demanding high performance characteristics. The

necessity of the lightweight and high mechanical as well as thermal characteristics have therefore

heightened and properties like low co-efficient of thermal expansion (CTE) and heat shielding is very

important requirement for proper functioning and performance. In this research work, inorganic fillers like

Aluminum Oxide (Al2O3), Boron Nitride (BN) and Silicon carbide (SiC) with various shapes and sizes

were used alone or in combinations to enhance the thermal properties. In addition to that, a coupling agent

was used for modification of the surface of the fillers. The use of hybrid filler was found to be effective in

increasing thermal conductivity of the composite due to the formation of conductive networks by

embedding fillers with high aspect ratio in the matrix. For a given filler loading, the use of larger particles

and treated filler gave rise to composite materials with enhanced thermal conductivity. The surface

treatment of filler resulted in composites with lower CTE. Therefore, hybrid reinforcements of varied

shapes and sizes for a given filler loading can impart higher thermal properties and can be very well used

in aerospace industry which can also be economical.


Study the effect of welding voltage on hardness and tensile strength of MIG welded

AISI-304 stainless steel using fuzzy logic technique

Sandeep Kumar *1, Narendra Kumar 2, Vivek Singh 3, S.K. Nath 4, and Devendra Puri 5 1,2,3,4,5Department of Metallurgical and Materials Engineering,

Indian Institute of Technology, Roorkee, Uttarakhand.

Abstract: The effect of welding voltage on the hardness and tensile strength of Metal Inert Gas (MIG)

welded AISI-304 stainless steel (SS) joints was studied. Three welding voltages designated as low (26 V),

medium (28 V), and high (30V) were operated during the MIG welding process, and joints made were

subjected to analysis of the microstructures, hardness, and tensile strength of the joints. The results of this

investigation indicate that the joints made using the high welding voltage exhibited smaller weld bead size,

higher tensile strength, elongation, and higher hardness than those welded with medium and low welding

voltage. Significant grain coarsening was observed in the heat-affected zone (HAZ) of all the joints, and it

was found that the extent of grain coarsening in the heat-affected zone increased with an increase in the

welding voltage. The average dendrite length and inter-dendritic spacing in the weld zone increases with

an increase in the welding voltage, which was the main reason for the observable changes in the tensile and

hardness properties of the weld joints. The experimental results were used to construct a fuzzy logic model


to quantify the effect of the input variables on the responses. The results were compared for different joints

made by MIG welding processes and finally optimized the best combination of input parameters for target

quality.


A Review on Geopolymer Concrete as Sustainability Material Using Different

Industrial Wastes

Lasyamayee Garanayak1

1Asst. Prof., Civil Engineering,

ITER College, SOA University, Bhubaneswar

Abstract: Low carbon concrete popularly named as geopolymer concrete is considered as sustainable

material or greener binder that act as major role in waste management. It reduces global warming potential

by 61% and improves human health category by 9.4%. Aluminosilicate materials are the prime source of

geopolymer concrete that mostly available from industrial wastes. Hence maximum utilization of industrial

wastes as geopolymer products in construction sector leads to reduction of pollutant effect. It produces

desirable strength with excellent workability condition, less emitting of carbon dioxide gas (CO2), low

consumption of natural resources and energy, high fire resistance, and greater durability against chemical

attack than Portland cement. Geopolymer concrete is prepared with combination of aluminosilicate source

materials and alkali solutions. Its strength varies according to chemical composition of aluminosilicate

material, concentration of alkali solution, type of alkali solution, solution/solid ratio, curing temperature,

curing condition, combine ratio of two alkali solution. For economic beneficiary maximum research on

geopolymer concrete is linked with two alkali solution like sodium hydroxide (NaOH) and sodium silicate

(Na2SiO3) or combination of both alkali solution using different ratio. This paper represents the study on

application of geopolymer concrete using different industrial wastes along with corresponding physical

properties. Mineralogy and morphology structure of geopolymer concrete is also discussed to understand

their bonding properties and structural changes after chemical reaction.


Experimental investigation on sinterabilty and densification behavior for high porous

Al- X% B4C powder synthesized composites

Udutha Raghupathi1, Suresh Gudipudi1 1Department of Mechanical Engineering,

CHAITANYA (Deemed to be University), Kishanpura, Hanamkonda, Warangal, Telangana, India

Abstract: Particulate Metal Matrix Composites (PMMCs) are very useful as lightweight functional materials

with high specific properties and low thermal expansion coefficients. Boron carbide B4C reinforced Aluminium

(Al) is the one among such PMMCs. The controlled porosity level of a composite can be obtained via powder

metallurgy fabrication technique which is essential in biomedical, defense, and thermal management

applications. The %B4C was varied at 0, 4, 5 and 6. The green composites were made ate uniaxial compaction


pressure of 100, 160, 220, and 280 MPa. Porosity was measured with Archemedes principle and theoretical

density. The sinterabilty and densification behavior for high porous Al- X% B4C was explained with the detailed

characterization results.


Experimental Analysis and Multi-Objective Optimization of Electro-Discharge

Machining via Grey-Taguchi, TOPSIS-Taguchi and PSI-Taguchi Methods

Prabina Kumar Patnaik1*, Srimant Kumar Mishra1, Priyadarshi Tapas Ranjan Swain2, Sambit Kumar

Parija1 1GIET University, Gunupur

2VSSUT, Burla.

Abstract: The purpose of this research is to optimize and analyze the process parameters of electrical

discharge machining (EDM) using Inconel 718 as the work material. Inconel 718 is a nickel-based super

alloy that has qualities such as high strength, superior oxidation resistance, and is widely utilised in the

aerospace industry. The influence of process factors including peak current (Ip), pulse on time (Ton), and

voltage (V) on EDM output responses has been investigated. The investigation's output characteristics

include material removal rate (MRR), tool wear rate (TWR), and surface roughness (SR). The experiments

are conducted based on Taguchi’s L9 orthogonal array design and the multi objective optimization study is

also applied using grey relational analysis (GRA), Technique for order preference by the resemblance to an

ideal solution (TOPSIS) and preference selection index (PSI) to find the optimum parametric setting for

controversial objective function combination such as high MRR, low TWR and low SR. The experimental

data are also statistically analyzed by using analysis of variance (ANOVA) and stated the contribution level

each parameter to reach the optimal output. The pulse on time (Ton) is the most influential parameter

followed by the voltage (V) and peak current (Ip) in most of the cases. Finally, scanning electron

microscope study has been performed to study the surface mechanisms of machined surfaces. Only a few

micro-cracks were discovered in the surface machined at optimal conditions, however lengthy cracks were

seen in the surface machined under initial conditions.


Antibacterial efficacy of carboxymethyl cellulose/chitosan nanocomposites reinforced

with graphene oxide and TiO2 nanoparticles

Mamata Das, Jasaswini Tripathy⃰

Department of Chemistry, School of Applied Sciences,

KIIT Deemed to be University.

Abstract: The development of polymer nanocomposites with antimicrobial activity has emerged as a

promising method to tackle antibiotic resistance. The present work has focused on the fabrication,

characterization of carboxymethyl cellulose/chitosan/TiO2-GO based nanocomposite for antibacterial

applications. Among various metal oxide nanoparticles, TiO2 is emerging as a significant antimicrobial


agent in the biomedical field. The incorporation of graphene oxide (GO) in polymer nanocomposite can

significantly enhance bacterial growth inhibition against various bacterial strains. The polymer

nanocomposite film has been fabricated by the solvent casting approach. The nanocomposite was

characterized by UV-Visible and FT-IR spectroscopy. The morphological analysis of polymer

nanocomposites was done using scanning electron microscopy which confirmed the presence of TiO2

nanoparticles and the successful inclusion of the GO sheet in the polymeric matrix. The thermal stability

of the nanocomposite film was also studied using thermogravimetric analysis. The antibacterial efficacy of

the polymeric nanocomposite film has been investigated towards both Gram +ve and Gram –ve bacterial

strains, using the disc diffusion method. The CMC/Chitosan/TiO2-GO nanocomposites showed significant

inhibition to bacterial cell growth.


Experimental Instigation on Vibration Assisted Electro Discharge Machining

of Inconel-718

Diptiranjan Panda*, Santosh Kumar Sahu, Kalyani Lohar, Chittaranjan Sethi

Veer Surendra Sai University of Technology, Burla, Sambalpur

Abstract: Electrical Discharge machining (EDM) is one of the methods which prove to be a performing

process in the machining of hard material like Inconel 718. Inconel 718 is a nickel-cromium based super

alloy widely applied in defence applications, automotive and aerospace. The machining process has some

limitation on low Material Removal Rate (MRR) and the machined surface. To overcome this limitation,

vibration assisted machining has been adopted. This paper addresses the design vibration setup and

enhances the flushing mechanism. As compared to conventional EDM the Surface morphology of the

vibration assisted EDMed work surface including white layer thickness, surface roughness and crack

density are studied. Additionally, effects on MRR, tool wear and surface roughness were studied by varying

the peak current and pulse on time.


Preparation and Characterization of the Activated Carbon from

Pterospermum acerifolium fruits

Arpita Sahoo1,*, Susmita Mishra1

1Department of Chemical Engineering,

National Institute of Technology, Rourkela.

Abstract: Activated carbon, an adsorbent which gives a better platform for the adsorption of liquids and

gases due to its porous structure, chemical and thermal stability. The carbonaceous biomass such as agro

wastes, forestry wastes, etc are used for the production of activated carbons. In the present study,

Pterospermum acerifolium fruits were employed as the precursor for the production of activated carbons

owing to its abundant availability through carbonization and chemical activation. The production

parameters such as activation time, amount of activating agents, and carbonizing temperature were


optimized for the maximum yield of activated carbons with high porosity. The proximate analysis and

thermo-gravimetric analysis were studied for the raw material. Yield percentage and iodine value of the

prepared activated carbon were estimated. The yield percentage of the obtained activated carbon ranged

40% to 50%. Surface characterization of the activated carbon was analyzed with BET and SEM

micrographs. The functional groups present on the activated carbon were determined by FTIR

spectroscopy. Iodine value of obtained activated carbon was greater than 1000mg/g i.e., it estimates the

amount of micropores present on the surface of the carbon structure which was validated by BET results.

It also revealed the effect of the parameters on the micropore and mesopore volume as well as the surface

area.


Potential of Abaca Natural fiber as Reinforcement in Polymer Composite and

Characterization Assessment

Ved Prakash, Samir Kumar Acharya

NIT Rourkela, Rourkela, Odisha, India

Abstract: Scientific development indulges in successive development and finding of new materials. Abaca

fiber is such high strength natural fiber whose potential in high end application (construction, automobile,

marine, aerospace etc.) product is not explored till date. This fiber is naturally associated with a very high

rough surfaces, adequate carbon and high cellulose percentage. That makes it suitable for reinforcement in

polymer composite. Also, fiber characterization is analyzed by the study of FTIR, XRD, TGA and SEM.

This study involves the fabrication of Abaca woven fiber reinforced epoxy composite. Composite is

fabricated with abaca fiber (A), glass fiber (G) and epoxy matrix in a sequence of AAAA, AGAG and neat

epoxy. Mechanical property assessment has been done with the study of tensile strength, young’s modulus,

flexural strength and impact strength analysis of layered composites. It has been analyzed that AGAG

possesses higher strength in all aspects. This happens due to hybridization of glass fiber in abaca fiber

composite. Scanning electron microscopy (SEM) is used for the determination of the failure mechanism

caused by various mode of failure during strength analysis of composite specimens.


Effect of Cu-doping and Thermal Treatment on Antibacterial Potential of

ZnS Nanoparticles

Pooja Dwivedi1, Pratima Chauhan1, Divya Tripathi1 1Department of Physics,

University of Allahabad, Allahabad.

Abstract: ZnS is one of the most important metal sulfide nanoparticles (NPs) that have drawn much

attention since last decades due to their properties and applications in various fields. The microorganisms

have the ability to develop the drug degrading enzyme over the period of time. This is one of the biggest

challenges for the researchers and scientist. ZnS NPs is a potential antibacterial material and thus can


prevent the growth of various harmful microbes. In this paper we have reported the annealing effect on

synthesized Copper doped ZnS (Cu-ZnS) nanoparticles. We have investigated optical properties of Cu-ZnS

nanoparticles with UV-Vis spectroscopy and Raman spectroscopy. XRD spectra and FESEM of

synthesized sample have also been investigated. The particle size of synthesized nanoparticle that have

been calculated by XRD analysis is about 2-18 nanometer. From UV- Vis spectra, red shift in the band gap

of Cu-ZnS NPs has been observed due to annealing at different temperature. This paper highlights the

understanding of treatment of temperature on Cu-doped ZnS nanoparticles. The synthesized materials

exhibited good antibacterial properties against Bacillus subtilis (Bs), Escherichia Coli (Ec) and

Staphylococcus aureus (Sa) bacterial strains. We have observed that the antibacterial activity of Cu-ZnS

NPs enhanced on increasing annealing temperature, which make it potential candidate for antibacterial

application.


The combined effect of loading rate and cryogenic treatment on the mechanical

response of glass fiber reinforced/epoxy composites

B. N. V. S Ganesh Gupta K1, Satyaroop Patnaik1, Ritupurna Sahoo1, Rajesh Kumar Prusty1,

Bankim Chandra Ray1 1FRP Composite Materials Laboratory, Department of Metallurgical and Materials Engineering

National Institute of Technology, Rourkela-769008, India

Abstract: Owing to their outstanding behaviour, the fiber-reinforced polymeric (FRP) composites are

being recognized as potential materials for cryogenic applications. The present works provides an insight

into the mechanical response of glass fiber/epoxy (G/E) composites under the combined effect of cryogenic

treatment and loading rate variation. The experimental investigation includes flexural test and short beam

shear test. Post cryogenic treatment G/E composite exhibited increased flexural strength and modulus and

a decreased flexural strain. Cryogenically treated GE composite loaded at 100mm/min showed the most

enhanced flexural strength, modulus and interlaminar shear strength values which were 14.6%, 10.6% and

16.1% respectively over untreated G/E composite tested at 100 mm/min loading rate. Loading rate variation

had a profound impact on the mechanical properties, especially on cryogenically treated G/E composites

whose flexural strength and interlaminar shear strength had higher dependence on loading rate when

compared to untreated G/E composite. Charpy impact test was performed after cryogenic treatment. Finally,

the fractography analysis was carried out using scanning electron microscope (SEM) for all flexural tested

samples to know the prominent failure modes.



Experimental Investigation on MRR of K-90 Alumina Ceramics with Zircon

Sand by Abrasives Jet Machining

Diptiranjan Panda, Santosh Kumar Sahu*, P.T.R. Sawain, Kalyani Lohar, Chittaranjan Sethi


Abstract: Abrasives Jet Machining (AJM) is a non-conventional machine technique that involves the

removal of materials from a machine by using high-pressure air. The process has been carried out by the

use of abrasive particles that are designed to break the surface of the workpiece. In context, the analysis is

carried out to investigate the effect of process parameters on MRR of Abrasive Jet Machining on K-90

alumina ceramic in association with zircon sand as abrasives. Influence of Abrasive Jet Machining process

parameters such as stand-off distance (3, 5, 7 mm), air pressure (4, 6, 8 kgf.cm-2), Zircon sand size (average

size 200, 550, 700 µm), and Zircon sand temperature (70, 90, 110 ºC) on Material Removal Rate (MRR)

have been studied. Response Surface Method (RSM) is a conceptual framework that relates the material

removal rate to the AJM parameter. This method is commonly used to improve the efficiency of MRR with

hot abrasives.


Influence of ionic liquid on the dielectric relaxation behavior of SWCNT reinforced

poly(vinyl alcohol) based nanocomposites

G. Sahu, B. P. Sahoo, J. Tripathy *

Department of Chemistry, School of Applied Sciences,

KIIT Deemed to be University,

Bhubaneswar-751024, Odisha, India

Abstract: Polymer nanocomposites based on single-walled carbon nanotubes (SWCNT) and poly(vinyl

alcohol) have been successfully prepared by solvent casting approach. The dispersion of SWCNT in the

PVA polymer matrix has been analyzed by a high-resolution transmission electron microscope (HRTEM).

The effect of SWCNT loading and imidazolium-based ionic liquid (IL) on the dielectric relaxation behavior

of the fabricated polymer nanocomposites have been explored in the frequency range of 1 to 106 Hz at room

temperature. The dielectric properties of the fabricated nanocomposites such as dielectric permittivity (εʹ),

AC conductivity (σac), real and imaginary impedance (Zʹ and Zʹʹ) as well as Nyquist plot were explored in

the presence and absence of ionic liquid. The dielectric permittivity (εʹ) and AC conductivity (σac) increase

in presence of IL and with the increase in SWCNT loading due to the enhanced interfacial polarization of

the SWCNT at the interface and uniform dispersion of SWCNT throughout the polymer matrix. The

decrease in impedance (Zʹ and Zʹʹ) with the increase in SWCNT loading is due to the enhanced proximity

between the conductive channels. The reduction in semicircular area under the Nyquist plot in presence of

IL and increasing SWCNT loading indicate the capacitive nature of fabricated nanocomposites and

decrease in bulk resistivity.



Optimization of Electrical Process Parameters of WEDM on ECAP Al7075

alloys considering Radial Overcut (ROC) as Output response.

Nani GopalRoy 1, Debayan Mondal 2, Partha Pratim Dey 1 , Manojit Ghosh 3


IIEST, Shibpur, Howrah, 711103, India ,

2 Technology Campus, University of Calcutta, Kolkata, 700106, India ,

3 Department of Metallurgy and Materials Engineering,

IIEST, Shibpur, Howrah, 711103, India

Abstract: Objective of the present work is to find out the predicted value of Radial overcut(ROC) while

machining of Al7075 alloy through Equal Channel Angular Pressing (ECAP) with channel angel 90 degree

and edge angle 20 degree with chosen process route C and without introduction of back pressure and

subsequently machining that ECAP sample by Wire electric discharge machining (WEDM). Response

Surface Methodology is applied in present study to predict the ROC in WEDM process for previously

ECAP Al7075 alloy. Pulse on time, pulse off time, servo voltage and peak current are taken as input

electrical process parameters to study the radial run out. The experiment was designed to perform as per

central composite design (CCD) method. After conducting 31 experiments a mathematical was being

developed for finding out the correlation and significance of electrical parameters on ROC. The coefficients

were obtained by performing analysis through ANOVA at 5% level of significance. It is observed that peak

current and servo voltage has got significant impact on radial overcut. The predicted results based on

mathematical model developed are found to be in a reasonably good degree of accuracy with the

experimental result. Optimum value of radial overcut is obtained experimentally as 26.075µm against pulse

on time 7 s, pulse off time 54 s, peak current value 100 A and servo voltage 25 volt respectively.


An experimental study on evaluation of fiber reinforced fly ash stabilized black

cotton soil as a sustainable subgrade material

Rashmisikha Behera1, Manas Ranjan Das2

1Department of Civil engineering,

ITER, Siksha O Anusandhan Deemed to be University,

2Department of Civil engineering,

ITER, Siksha O Anusandhan Deemed to be University

Abstract: With population escalation and the reduction in availability of land, there is a growing demand

for structures on weak or soft soils. Black cotton (BC) soil has been considered as a problematic soil because

of high swelling potential. Pavements constructed on BC soil subgrade suffer from severe rutting and

cracking on the pavement surface. In order to avoid this type of failure in the BC soil, stabilization with

reinforcement is preferred recently. The aim of the current work is to check the efficiency of Poly Vinyl


Chloride (PVC) fiber reinforced-fly ash stabilized black cotton soil as a sustainable subgrade material. PVC

fiber as reinforcing material and Fly ash as the admixture for stabilizing the BC soil is used. For minimizing

the impact of fly ash on environment, use of waste products in construction work is inevitable and a

sustainable solution. In the present research work, Black cotton soil from three different places of Odisha

have been collected and treated with different percentage of fly ash and PVC fiber in order to improve

various engineering properties. From the results it is found that there is an increase in Unconfined

Compressive Strength (UCS) and California Bearing Ratio (CBR) values of the treated soil and the

optimum value of fly ash is found to be 30% and PVC fiber to be 1.5%.


Comparative studies of BT, BFN and 0.94BT-0.06BFN ceramics synthesized

through sol-gel route

R. R. Negi1, P. Kumar1,* 1Department of Physics and Astronomy,

National Institute of Technology, Rourkela 769008, Odisha, India

Abstract: High dielectric constant (εr), low dielectric loss (tanδ), and temperature stability are essential

criteria for microelectronic devices, capacitors and energy storage systems. Barium Titanate (BaTiO3/BT)

is one of the best perovskite ferroelectric materials having excellent dielectric properties but these properties

are highly temperature-sensitive at transition temperature (TC). Barium iron Niobate (BaFe0.5Nb0.5O3/BFN)

is a perovskite, non-ferroelectric material with giant εr which is independent of temperature and frequency

but it possesses high tanδ values. In the present study, an effort has been made to improve the dielectric

properties of BT with 6% of BFN modification (i.e. 0.94BT-0.06BFN). BT and BFN ceramic samples were

individually synthesized by sol-gel route. The modified BT ceramic samples were then synthesized through

sol-gel route via two different methodologies. The first technique involves a solid-solution process wherein

all the precursors were taken together in a combined stoichiometric ratio and synthesized. The second

method, known as the composite technique initially involves creating two separate phases of BT and BFN

which are then sintered together to achieve the desired ceramic sample. The phase identification of the

above-obtained ceramic samples was confirmed from XRD peaks. Experimental density was calculated by

using Archimedes formula. Microstructure of the ceramics was obtained from SEM. Electrical

measurements were taken and their properties were studied. 0.94BT-0.06BFN composite technique yielded

better dielectric properties than that of solid-solution process.



Influence of Filler in Water Absorption Behaviour of Glass Fibre Reinforced

Polymer Composite: A Comparative Analysis

Manoj Kumar*, Hemalata Jena,

School of Mechanical Engineering,

KIIT Deemed to be University, Bhubaneswar

Abstract: This paper deals with the effect of filler material in the water absorption behaviour of glass fibre

reinforced polymer composites. The composite with six layers of fibre being prepared using the most

common way of hand lay-up process and the fillers used are clamshell and cenosphere. Water absorption

kinetics of the composites is studied to find the nature of water absorption (Fickian and non-Fickian) for

distilled and saline water. Observed results show that filler content also plays a significant role in the water

absorption of the composite. Addition of filler reduces the water absorption capacity of the composites.

Composites with cenosphere filler show better results as compared to the composites with clamshell filler.


Friction and Wear Studies of Polymer Nano Composites – A Review

Y N Babu1, DV Praveen1, P Manmadharao1

1Bapatla Engineering College, Bapatla, Andhra Pradesh. 522101

Abstract: Polymer nano composites have been drawing much attention due to its increased demand in the

field of automobiles, biomedicals, aerospace, injection molded products, coatings from three decades. The

current study is focused on wear characteristics of polymer nano composites to attain deep insight into the

effects of various nano fillers/ additives on wear performance of polymer nano composites. Emphasis is

given to the effect of nano filler content on friction, wear resistance, mechanism of wear and transfer film

formation of nano composites the limitations from previous words or addressed and future research scope

on wear of polymer nano composites are proposed.


Structure and Optical properties of Ca0.96WO4:Pr0.04 powders

R. Paikaray, T. Badapanda, H. Mahapatra

Department of Physics,

C.V. Raman Global University, Bhubaneswar, Odisha-752054, India

Abstract: In this paper we reported the structural and optical properties of Ca0.96WO4:Pr0.04 powders

were synthesized by a high temperature solid-state reaction route. A tetragonal phase with I41/a (88) space

group of the scheelite type crystal was confirmed by the X-ray diffraction study. The optical properties

were investigated by means of ultraviolet-visible (UV-Vis) absorption spectroscopy and

photoluminescence (PL) measurements. The excitation as well as the emission spectra was obtained from

the photoluminescence spectroscopy by taking 650nm and 451nm as emission and excitation wavelength


respectively. An emission band was found around 490nm in the emission spectra due to the transfer of

charge from 5d energy level of W6+ ions to 2p energy level of O2- ions. The holes generated from O2- ions

are trapped by the vacancies of the Ca2+ ions and the liberated energy is transferred to Pr3+ ions. The color

purity is calculated from the CIE Chromaticity by indicating the presence of typical broad band emissions

in the red region. The optical band gap of the phosphor is calculated from the UV- Visible spectroscopy.

The experimental results confirmed that the material can be act as a promising luminescent material for the

WLEDs.


Tribological Evaluation of Marble dust Filled Polyester Composites using an

Integrated Fuzzy Logic and Response Surface Method Approach

S K Nayak1, A Satapathy1, S Mantry2


National Institute of Technology, Rourkela, India,

2Materials Chemistry Department,

CSIR-Institute of Minerals and Materials Technology

Abstract: Friction and wear are identified as huge problems for the engineering industries, and these are

being studied extensively in the 21st century with an intension to reduce the wear losses by developing

newer and cheaper tribo-materials. In view of this, the present investigation is based on developing

polyester-marble dust composites to ascertain their potential in the wear related applications. Marble dust

is an industrial/construction waste produced during the preparation of usable marble pieces from the marble

producing rocks. Polyester composites consisting of three different proportions (0, 16 and 32 wt%) of waste

marble dusts are fabricated and their dry-sliding wear response is evaluated using a pin-on-disc wear tester

as per the L30 model of response surface method (RSM) following ASTM G99-05. The analysis of test

result revealed that the wear rate of the composites is affected significantly by the factors like filler content

and sliding velocity. Morphologies of the worn composite suraces are studied using a scanning electron

microscope (SEM) to get a brief idea regarding the wear mechanism. Two prediction models based on the

response surface method and fuzzy logic are proposed to determine the effects of significant control factors

on the wear rate more precisely.


Characterization of tensile and impact properties of fabricated AlSi10Mg by SLM

Technique

Sibabrata Mohanty1, Srimanta kumar Mishra2 , Pradeep Kumar Mishra3, Shyam sunder Samal4, Partha

sarathi parida5

Abstract: The potential of additive manufacturing of aluminium alloys has already been realized in

prototyping, but still offers greater potential in the establishment of series applications and designs. For


enabling the establishment of additive manufacturing in a series of applications, cultivating comprehensive

knowledge about the material behaviour and its implications is highly essential. This study examines the

mechanical properties of additive manufactured AlSi10Mg samples using SLM technology and shows the

strong correlation between tensile and Charpy strength among printed specimens. A thorough investigation

was carried out to predict the effects of laser power and scanning speed on the mechanical properties of

printed samples. It is observed that with the increase of laser power and decrease in scanning speed, the

stacking of melt pools achieves greater uniformity and less porosity around bead interfaces and resulted in

better mechanical properties. The highest tensile strength of 292.86 MPa and maximum elongation of 2.450

mm is achieved at the combination of 300 W laser power and 1300 mm/s scanning speed. The highest

Charpy impact strength of 006.4 (j/cm2) was observed at the parametric setting of laser power 310 W, speed

700 mm/s, and hatch distance 0.13 mm. Furthermore, it was found that for the same laser energy density,

the variation of laser power has a more significant effect on the pore defect than that of scanning

speed.Factography analysis has been done on facture surface tensile sample to know the different facture

behaviour.


Optimize the effect of Process Parameters While Turning AL Based

MMC Reinforced with agro waste in CNC Machine

Sibabrata Mohanty1, Gopal Krushna Mohanta2 , Manas Ranjan Sikha3, Uttam Kumar Patra4, Ajay Kumar

Gope5


GIET University, Gunupur 765022, India

Abstract: In recent years aluminum metal matrix consider as post popular material for aerospace,

structural, defense and other industrial applications.Beacuse of its unique properties like strength, stiffness,

light in weight and high wear resistance. Using of traditional reinforcement which more cost effective. Fly

ash is one of the industrial wastes which is easily available which can reduce the cost of the composite.

Various methods are adopted to prepare the MMC but stir casting technique is used to for bulk production.

Machining is the process of removal of excess material from a work piece. Due to a huge change in scenario

of manufacturing industries the applications of optimization techniques is one of the challenging tasks. To

fulfill the demand the manufacturing process the role of optimization plays a vital role. The main aim of

this study is to know the effect of process parameter on surface roughness and MRR and to correlate the

process parameter viz. Speed, feed and depth of cut with output parameter through Grey relational analysis

and Topsis. Nine experiments were conducted to determine the optimum condition and the best alternative.

By using Grey relational analysis the parametric setting at cutting speed and depth of cut varies at level 2

and Feed is at 1st level gives the best alternative for MRR and surface roughness. In connection to the above

experiment same analysis was performed through Toppsis and the result was compared with Grey Taguchi.



Structural, Dielectric and Magnetic Studies of Modified Strontium

Hexaferrite

Anupama Pati*, Payal Sahoo, Sujata Kumari Ray, A. K. Sahoo, S. Dash

Department of Physics and Astronomy,

NIT Rourkela, Rourkela- 769008

Abstract: An interesting rather intriguing effect of Pb2+ on the structural, dielectric and magnetic properties

are studied in Strontium Hexaferrite (SrFe12O19). The ethylene glycol assisted sol-gel auto-combustion

technique is adopted to synthesize the hexaferrites. Structural aspects of the SrFe12-xPbxO19 (x = 0, 0.1)

is extensively carried out by using X-Ray Diffraction technique. Phase purity of the prepared samples is

confirmed by performing rietveld refinement analysis. The parent as well as doping sample both crystallizes

in a space group P63/mmc. An extensive dielectric study of the prepared sample is carried out from 30 o to

400 oC in the frequency range from 100 Hz to 1 MHz. From the frequency dependent behavior, it is found

that dielectric constant as well as loss tangent decreases with increase in frequency and attains a constant

value at very high frequency range. Similar behavior is also can be seen in doping system but attains a

smaller value. Furthermore, this behavior is in good agreement with Maxwell-Wagner model and Koop’s

phenomenological theory. Room temperature magnetic properties of the fabricated samples are measured

using Vibrating Sample Magnetometer. Field dependent magnetization plots show usual hysteresis loops.

However, saturation magnetization decreases and coercivity increases with doping in comparison with the

parent compound. This shows that the samples can be used in storage devices.


Weld Interface Characterization in Ultrasonic Welding of Al-CuNi Sheets

Soumyajit Das1*, Mantra Prasad Satpathy1, Kasinath Das Mohapatra2, Susanta Kumar Sahoo3

1 School of Mechanical Engineering,

KIIT Deemed to be University, Bhubaneswar-751024, Odisha, India

2 Department of Mechanical Engineering,

College of Engineering and Technology, Bhubaneswar-751003, Odisha, India


National Institute of Technology, Rourkela-769008, Odisha, India

Abstract: In recent years, the growing demand for electric vehicles and to reduce environmental pollution

have compelled the automotive lithium-ion battery manufacturer to adopt a robust joining method.

Aluminum (Al) alloy and Cupro-Nickel (CuNi) sheets are typically utilized in lithium-ion battery cell

joining for hybrid electric vehicles (HEV) or electric vehicles (EV) owing to their higher electrical and

thermal conductivities. However, several fusion welding techniques are failed to provide good joint strength

due to the generation of weld imperfections and rapid growth of brittle intermetallic compounds (IMCs) at

the joint interface. Ultrasonic welding (USW) is an energy-efficient process that produces effective bonds


rapidly between the two dissimilar thin materials. The weld interface temperature is comparatively low

during the USW process, and negligible IMCs are formed at the bond region. In the present study, the weld

strength and failure behavior of Al-CuNi joints are investigated at various weld energies. The critical stress

intensity factor result reveals that it gradually increases to the maximum value, followed by decrement with

further increasing welding energy. The temperature phase graph is also studied throughout the joining

process better to understand the thermal cycles at the weld interface. The hardness of Al side is decreased

by weld energy because of enhanced plastic deformation and elemental diffusion at the bond interface. On

the other hand, CuNi surface hardness is not changed distinctly. Moreover, the cross-sectional and

microstructural behavior of the joint interface is discussed to comprehend the complete bond quality.


Enhanced Dielectric and Optical Properties in Al-Substituted KBiFe2O5

Payala Sahoo*, Anupama Pati, Sujata Kumari Ray, A. K. Sahoo and S. Dash

Department of Physics and Astronomy,

NIT Rourkela, Rourkela-769008

Abstract: We report a significant effect of Aluminum (Al3+) substitution on the structural, optical and

dielectric properties in brownmillerite KBiFe2O5 (KBFO) multiferroic. Polycrystalline samples of KBiFe2-

xAlxO5 (x = 0, 0.2) are synthesized by citrate combustion method. From the Rietveld refinement of X-ray

diffraction analysis, both the samples are found to crystalize in a monoclinic structure with space group

P2/c. The calculated crystallite size from the Scherer’s formula is found to decrease with Al doping. The

surface morphology reveals that, multiple grains of different sizes are present in all the samples and the

average grain size is reduced with substitution. The optical band gap decreases from 1.74 eV to 1.71 eV

with x = 0.2 of Aluminum. Furthermore, the temperature dependent Dielectric constant (ε) and dielectric

loss (tan δ) of KBiFe2-xAlxO5 are measured in a temperature range (300 K- 773 K) at 100 Hz and 1 KHz

frequency shows a substantial variation followed by a transition at around 550 K for all the samples. A

comparative analysis for both the systems reveals that, for x = 0.2 of Al, an order of increase of dielectric

constant appears as compared to the parent system. Additionally, the dielectric loss is also found to decrease

with doping as compared to pure KBFO.


Synthesis of silica-cellulose hybrid aerogels for thermal and acoustic insulation

applications

Debabrata Panda, Krunal M. Gangawane*

Department of Chemical Engineering,

National Institute of Technology Rourkela, Rourkela-769008, Odisha, INDIA

Abstract: Silica-cellulose hybrid aerogels were successfully synthesized from the recycled cellulose fibres

and tetraethylorthosilicate(TEOS) extracted silica aerogels with methoxytrimethylsilane (MTMS) as a


silica precursor for the first time. The developed hybrid aerogel exhibits a super hydrophobicity with an

average water contact angle of 163.40. Their thermal conductivity was approximately measured to be 0.04

W/mK. Moreover, the thermal degradation temperature for the cellulose component of the hybrid aerogels

exhibits a 30-400C improvement over those for cellulose aerogels. The sound adsorption co-efficient of the

hybrid aerogels with a 20mm thickness were 0.48-0.62, better than cellulose aerogels (0.30-0.40) and

commercial polystyrene foams. When the cellulose fibre concentration increase from 1.0 to 4.0 wt% the

compressive young’s modulus of the hybrid aerogels can be enhanced 130%, up to 118 KPa. This work

provides a facile approach to develop a cost-effective and promising silica-cellulose hybrid aerogel with

industrial application for thermal and acoustic insulation applications.


Microstructure and mechanical properties of mechanically alloyed and

conventionally sintered Nb-W and Nb-Mo alloys

D. K. Gardia1, A. Patra1,*

1 Department of Metallurgical and Materials Engineering,

National Institute of Technology-Rourkela, Rourkela-769008, Odisha, India,

Abstract: Nb-W and Nb-Mo exhibit unrestrained solubility in liquid and solid phase, leading to influence

the mechanical properties of Nb. In the present work 90Nb-10W (alloy A) and 90Nb-10Mo (alloy B) (in

weight%) are synthesized by mechanical alloying for 10 h and consolidated by conventional pressureless

sintering in argon atmosphere at 1450 °C with 2 h of soaking time. The effect of compaction pressure (375

MPa, 500 MPa, 625 MPa) on densification before sintering and densification, hardness after sintering of

the alloys is also investigated. Plastic-assisted deformation is more in alloy B against alloy A which

enhances the densification during sintering. Elemental mapping and line scanning result of sintered alloy

A show the incidence of W in Nb phase, suggesting profound inter-diffusion of W/Nb. Alloy B exhibits

maximum %relative green density (before sintering at 625 MPa owing to the higher ability of particle

rearrangement by deformation against alloy A. Maximum % relative sintered density of 68.89% is achieved

in alloy B at 500 MPa pressure. Alloy A exhibits maximum hardness of 3.11 GPa at 625 MPa compared to

2.55 GPa hardness for alloy B compacted at identical compaction pressure. The wear depth of Nb-W is

comparatively higher than Nb-Mo, both compacted at 625 MPa pressure.



Microhardness Variability Assessment of Copper-Grit-Concrete (CGC)

Swetapadma Panda*1; Nikhil Zade2; Pradip Sarkar3 1 Assistant Professor, Siksha ‘O’ Anushandhan University, Bhubaneswar, India,751030

2 Ph.D. scholar, National Institute of Technology Rourkela, India, 769008 3Associated Professor, National Institute of Technology Rourkela, India, 769008

Abstract: Due to the inhomogeneous and anisotropic microstructure of the hardened concrete cast from

pozzolan waste, the measured microhardness value varies significantly. This study is an in-depth

assessment of the microhardness of copper-grit-concrete (CGC) with several doses of copper grit from a

statistical point of view. Fifty microhardness measurements each were conducted on five types of CGC mix

sample after 28 days of normal water curing. The results showed that the microhardness measured from the

CGC sample significantly scattered with a large standard deviation, varying from tens to hundreds. The

data-set of microhardness values was not normally distributed but fit best with a three-parameter lognormal

model. By using a statistical software, the probability density function of the microhardness distribution

can be readily obtained. The arithmetic means and its 95% confidence intervals of the measured

microhardness values can be used to best represent the microhardness characteristics of CGCs.


Synthesis and application of Activated carbon from Artocarpus Heterophyllus

peel for the removal of fluoride from aqueous solution

Pratima Minz, Susmita Mishra

Department of Chemical Engineering,

National Institute of Technology, Rourkela

Abstract: Fluoride, one of the non-metallic substance that is often found in different sources of ground

water. Presence of fluoride in excess concentration is considered as a major environmental issue which are

hazardous to health. Hence, it is very important to remove the excess fluoride from drinking water to

maintain the fluoride concentration within the permissible limit. The purpose of this study is to explore the

performance of optimized activated carbon where the precursor is agricultural waste (Artocarpus

Heterophyllus peel), and it is used as an adsorbent for the fluoride removal from the aqueous medium. TGA

analysis and proximate analysis was done for the raw precursor. The chemical activation was done using

ortho-phosphoric acid and the pyrolysis was done in tubular furnace. The process parameters such as

Impregnation ratio, activation time, and temperature were optimized. The precursor as well as the activated

carbon has been characterized by SEM-EDX, FTIR, and XRD analysis. The activated carbon showed

maximum Iodine number of 1313mg/g with yield 42.6% at the optimized condition. Batch study was

conducted for the optimization of the process parameters for fluoride adsorption such as, adsorption time,

initial concentration of fluoride solution, amount of the adsorbent dose, and pH of solution. Isotherm models

and kinetic models were fitted to the experimental data. The results showed that activated carbon prepared


from Artocarpus Heterophyllus peel has the potential to remove more than 90% of fluoride from the

aqueous solution.


Effect of glass fibre hybridization on mechanical properties of kenaf fibrepolyester

composite laminates

Deepak Kumar Mohapatra 1*, Chitta Ranjan Deo 1, Punyapriya Mishra 1


Veer Surendra Sai University of Technology, Sambalpur, Odisha, India

Abstract: The interest in natural fibre composites is growing its acceptance in different fields such as

aerospace, structural application, automobile due to its high performance in mechanical properties, low cost

and low density. Many researchers have identified different natural fibers used to substitute glass fibre,

among them kenaf appears to be favorable. However, some drawbacks such as poor moisture absorption

tendency, low modulus were improved by hybridization with synthetic fibers. Hence the objective of this

work was to evaluate the mechanical properties of kenaf/glass polyester hybrid composites using static test

methods as per ASTM standards. The outcome of present investigation indicate that hybrid composite

laminates improved by 160.82% in tensile strength and 59.38% in flexural strength as compared to

kenaf/polyester composites (KP). The finite element analysis was also studied through FEA software

ANSYS workbench (version R19.0) to validate experimental results. It is observed from the findings that

FEA values is found to be higher than experimental results.

(ICPCM21/E/58)

Antibacterial activity of PVA functionalized Iron Nanoparticles synthesized via via

co-precipitation Method

Pratishtha Kushwaha1*, Pratima Chauhan1,

1*Department of Physics,

University of Allahabad, Prayagraj,

Abstract: Iron oxide nanoparticles were synthesized using ferric chloride (FeCl3.9H2O), ferrous chloride

(FeCl2.6H2O), Polyvinyl alcohol (PVA) and ammonium hydroxide (NH4OH) via simple co-precipitation

method. The aim of this study is to development of reliable experimental protocols for synthesis of metal

nanoparticles with desired morphologies and sizes has become a major focus of researchers. The iron

nanoparticles were characterized by, Fourier transform infrared spectroscopy (FT-IR), high resolution

transmission electron microscopy (HR-TEM), field emission scanning electron microscopy (FE-SEM) &

Energy Dispersive X-Ray Analysis (EDX), UV-Vis spectroscopy, X-ray photoelectron spectroscopy,

Vibrating Sample Magnetometer (VSM) and X-ray diffraction (XRD). The antibacterial activity was

studied against three bacteria by using well-diffusion method. The average particle size for Iron oxide

nanoparticles synthesized using the co-precipitation method was calculated by Scherer method found to be

∼ 7–10 nm. The FE-SEM and HR-TEM studies revealed spherical in shape and average particle size quietly


matched with the XRD results. At room temperature, all samples had a magnetization curve that was typical

of ferromagnetic behavior. Fourier transform infrared spectroscopy (FT-IR) and EDX results revealed that

no other functional group is present other than iron oxide nanoparticle. XPS spectra confirm that prepared

sample is iron oxide nanoparticle. In order to study the effect iron oxide (IO) nanoparticles on

Staphylococcus aureus, E. coli, Streptococcus, iron oxide (IO) nanoparticles were grown in the presence of

four different IO nanoparticle concentrations for 24 hours. The results provide evidence that IO/PVA

nanoparticles inhibited S. aureus growth at the highest concentration (0.15mg/mL) at all time points.


Study on mechanical properties of palm fiber reinforced epoxy composites filled with

rice-husk

Arun Kumar Rout1, Surya Narayan Pradhan2

1Department of Production Engineering,


2Department of Life Science,

Sambalpur University, Burla, Sambalpur

Abstract: Particulates fillers in polymer matrix play a major role in determining the mechanical properties

of composites. A new class of hybrid composites reinforced with palm-fiber and filled with different weight

proportion of rice husk (RH) particulates is developed. Mechanical characterization of these composites

shows that the tensile strength of RH filled composites is less compared to the unfilled ones. It is seen that

the tensile modulus of RH filled composites is increasing from 746 MPa to 1181 MPa. Micro-hardness,

density and impact strength of the composites are also affected by content of RH fillers. It is noticed that a

composite with 15 wt.% RH shows a maximum hardness of 45Hv and impact energy of 0.58J among all

the composites. A minimum void content of 1.08% is observed in the unfilled samples while it is increasing

with filler addition and found to be 2.27, 3.31 and 4.54% respectively for 5, 10 and 15 wt.% of rice husk.

This study reveals that there is a steady decline in tensile, flexural and interlaminar shear strength is noticed

with filler addition.


Microstructural Characterization of Aluminium to Titanium Friction Stir

Welds.

T Saravana Sundar. A**, Vishnu Vardhan. T, Adepu Kumar


National Institute of Technology, Warangal

Abstract: Next generation of jet engines for aerospace industry clearly depends on the manufacturability

and improved ability of titanium alloys and aluminium alloys that can withstand the high temperatures.

However, the primary sheets, plates, billets, ingots, or rods are of limited sizes that need to be either

machined or welded in order to produce a desired structure with optimal the buy-to-fly ratio. Friction stir


welding (FSW) technique is considered to offer advantages over fusion welding in terms of dissimilar

jointing. However, some challenges still exist in the butt FSW of dissimilar metals. The present research

employed a modified butt joint configuration into the FSW of Ti–6Al–4V alloy to Al6061 alloy with a

special pin plunge setup, aiming to obtain a high-quality Ti-to-Al joint, avoid butt flaw or Al melting, and

reduce the tool shoulder attrition. Under different FSW process conditions, the examinations and analyses

of macro/micro-structures of the dissimilar joints have been studied. This work briefs about the

microstructure of the sound joint using Optical Microscopy, Scanned Electron Microscope and Electron

Backscattered Diffraction techniques.


Modelling and Parametric Analysis of Abrasive Wear Behavior of Eulaliopsis Binata

Fiber Reinforced Polymer Composites Using Response Surface Method

Subhrajit Pradhan1*, Ved Prakash1 , M Hemachandra1, Samir Kumar Acharya1 1Department of Mechanical Engineering,


Abstract: Now-a-days environmental concerns motivate researchers to explore new avenues of natural

substitutes to the synthetic fibers for polymeric composites. The present study is aimed at the potential use

of a new natural fiber in polymer composites (Eulaliopsis Binata fiber) as a reinforcing material whose

potential has not been fully realized till time to improve the tribological properties. The Eulaliopsis Binata

(EB) fiber reinforced epoxy based composites were fabricated and two body abrasive wear test of the

developed composites was conducted as per Response Surface Method (RSM) by considering fiber content,

sliding velocity, normal load and sliding distance as process parameters. The results obtained from the

experimental designs suggested that the inclusion of EB fiber has resulted in significant improvement in

abrasive wear resistance of the developed composites. The order of influence of different process

parameters was also determined. Further, the modelling of the abrasive wear performance of composite was

proposed within the experimental range of the present investigation. The worn surfaces of tested samples

are analyzed using field emission scanning electron microscope (FESEM) to find out the wear mechanism

of the composites. The pullout of fiber and weakening of fiber-matrix interfacial bonding were found to be

the predominant modes of failure during the abrasion of the composites. The results obtained in this

investigation advocate the viability of EB fiber to be used as a reinforcement in PMCs to improve the

tribological properties.


Synthesis and fabrication of acrylic acid treated rattan fiber epoxy composite

Susanta Behera1, J.R. Mohanty1, G. Nath2 1Department of Mechanical Engineering,

Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha 2Department of Physics,



Abstract: The present work encompasses synthesis and fabrication of short rattan fiber (1-3mm) reinforced

epoxy composite with enhanced mechanical properties. Acrylic acid has been considered as surfactant for

surface modification of rattan fiber in order to have better compatibility with epoxy thermosetting matrix.

Various mechanical properties such as tensile strength, young’s modulus, flexural strength, flexural

modulus, impact strengths and hardness of the fabricated composite have been calculated and analyzed with

different weight percentage of fiber matrix composition. Scanning electron microscopy (SEM) has been

used to study the morphology of the fabricated composite. The acrylic acid treated composite shows better

tensile, flexural and impact strength at 45.5 MPa, 121.89 MPa and 39.445 J/m respectively. Regression

analysis reveals that the composite with 18% fiber content (optimum weight percentage) exhibits better

mechanical properties. The results suggest that rattan fibers provide a natural and sustainable choice for

reinforcing composites in a wide range of technical applications where synthetic fibres are already utilized

nowadays.


Phase formation and electrical properties study of PVDF thick films synthesized by

solution casting method

A P Kajal Parida1**, S. Swain1, R. Sahu1, B. Samanta1, R. R. Negi1, P Kumar1* 1Department of Physics and Astronomy,

National institute of technology Rourkela

Abstract: Ferroelectric poly (vinylidene fluoride)/PVDF is the most popular material used in flexible

electromechanical devices due to its light weight, high flexibility, sensitivity, ductility and high dielectric

constant than the other synthetic polymers. In this study, PVDF thick films of thickness ~180 µm were

synthesized by solution casting method. X-ray diffraction study confirmed the presence of both α and β-

phases of PVDF. Further, Raman spectroscopy and Fourier transform infrared spectroscopy (FTIR) of the

synthesized thick films were carried out to know the types of phases present. Surface micrographs of PVDF

thick films showed dense microstructure. Dielectric constant and dielectric loss of PVDF thick films at

100Hz frequency were found to be ~19 and ~0.33, respectively. It was observed that, dielectric constant

decreases with the increase of frequency due to decrease in net polarization. However, dielectric loss first

decreased with the increase of frequency and then started increasing, which indicated the existence of

dielectric relaxation process taking place in the synthesized PVDF thick films. Ferroelectric behavior of the

PVDF thick films was confirmed by polarization vs. electric field (P~E) hysteresis loop study. Values of

maximum polarization (Pmax), remnant polarization (Pr), and coercive field (Ec) of synthesized PVDF

film were found to be 1.43µC/cm2, 0.42 µC/cm2, and 120.92kV/cm respectively at an applied field of

500kV/cm.



Characteristic study of sisal-jute hybrid composites filled with

nano marble dust particle

1Sasmita Kar, 2Suryakanta Mishra, 3Sarojrani Pattnaik and 4Mihir Kumar Sutar

1, 3, 4VSSUT, Burla, Odisha, India. 2BPUT, Rourkela

Abstract: Owing to the popularity of bio degradable composites natural fibers plays a major attention in

the field of manufacturing, automobile, aerospace, marine industrial application to optimize environmental

pollution. The major hazards of synthetic fibres are its manufacturing cost, ecological toxic waste, non

biodegradability which extensively overcome by natural biodegradable composites. Hybrid jute based

composites are having wide application due to its enhanced physical, mechanical and thermal property. In

this work woven jute, sisal and glass fabrics are reinforced with epoxy to manufacture the composites

materials with varying stacking sequence and filled with nano marble dust powders. Before the fabrication,

the natural jute and sisal fabrics are subjected to mercerization treatment for enhancement of surface texture

to develop superior fibre and matrix interface bonding. The most convenient and economic hand layup

manufacturing process is used for manufacturing the composite material. The physical, thermal and

mechanical properties are investigated for specimens as per different ASTM standards. It is investigated

that presence of marble dust and jute fabrics towards the surface improves the tensile strength. Similarly

addition of nano marble dust particles drastically improves the impact strength enhanced with increasing

the layering of glass mats. The presence of maximum weight percentage of natural fiber as well as marble

dust shows utmost weight change during TGA analysis.


An investigation on tensile strength of treated organic fibers

by regression modelling

1Sasmita Kar, 2 Sarojrani Pattnaik, 3Mihir Kumar Sutar

123VSSUT, Burla, Odisha

Abstract: The global alertness of environmental distress influences the natural green cellulosic fibers has

potential as reinforcement to replace the synthetic fibers due to its high specific stiffness and strength. In

the last few decades natural polymer based composites are gaining revival popularity in various industrial

sectors providing inconsistent properties. The organic fibers are subjected to mercerization for

improvement of surface texture as well as mechanical performance by reducing the major inherent

hydrophilic nature and other foreign substances like dust particles ,wax, lignin and pectin . This paper

evaluates the tensile properties of both untreated and alkali treated natural coir and brown flax fibers. The

tensile test of fibers is conducted for varying strain rate and diameter. The multiple linear regression analysis

is carried out to by using MINITAB software. The regression model yields excellent correlation coefficient

for the prediction of tensile strength at different strain rate. The treated flax fiber results better tensile

strength as compared to other treated and untreated fibers. Similarly treated coir results better tensile load

carrying capacity than others. Among all the fibers, the R2 value obtained from regression analysis is


highest for treated flax fiber. The treatment effects on moisture absorption behavior of the selected

cellulosic fibers are also summarized.


Effect of MWCNT/Nanosilica reinforcement on the mechanical and thermal

behaviour of polymer composite

Shubham Rameshrao Maske1, B. N. V. S. Ganesh Gupta K1, Srinivasu Dasari1, Rajesh Kumar Prusty1,

Bankim Chandra Ray1 1FRP Composite Materials Laboratory, Department of Metallurgical and Materials Engineering


Abstract: Polymeric composites are being recognized as the most promising materials in various firms due

to their superior performance. However, these polymeric materials suffer from low toughness, and also they

are susceptible to environmental degradation when they exposed to harsh environments. In this regard, the

present investigation has been carried out to evaluate the influence of the addition of binary nanoparticles,

and the content variation (0.1 wt.%, 0.5 wt.%, and 1.0 wt.%,) of nanosilica on mechanical and thermal

properties of multiwalled carbon nanotubes (MWCNT) - nanosilica (NS) embedded epoxy nanocomposites

at room and elevated test temperatures. Nanocomposite with 0.1MWCNT-0.5NS exhibited better flexural

strength and modulus values over other experimented composites. Differential scanning calorimetry (DSC)

analysis has also been carried out to study the variation of thermal properties of nanocomposites with

temperature. Fractography analysis was done to understand the possible failure mechanisms using scanning

electron microscopy (SEM).


Thermal & Mechanical Characterization of Untreated & treated Natural fibers for

manufacturing of Polymer Composite: A Review

Ashis Hota1**, SR Pattnaik2,MK Sutar3 1, 2, 3Deptt. of Mechanical Engineering,


Abstract: Natural fibers are used as reinforcement in preparation of polymer matrix composites (PMC).

Fibres mostly used for structural applications are glass and carbon fibres. But, the usage of natural fibres is

an economical alternative and possesses many advantages such as biodegradability, low density, high

specific properties and low cost .The fibers are usually treated with various concentrations of alkali to

improve its adherence properties. Untreated and alkali treated fibers are analyzed using Fourier transform

infrared (FTIR) spectroscopy, Scanning electron microscope (SEM) analysis, X-ray diffraction (XRD),

Thermo-gravimetric analysis (TGA/DTG). Mechanical properties of both treated and untreated fibers are

tested by various methods such as tensile, compressible strength, water absoribility, hardness, etc. This

review presents the reported works on various types of natural fibers used as reinforcement in PMCs.



Investigation of structural and dielectric behaviour of modified BaTiO3 ceramic for

possible multilayer ceramic capacitor (mlcc) application

1S. Sahoo, 1T. Badapanda 1Department of Physics,

C.V Raman Global University, Bhubaneswar, Odisha

Abstract: In the present work, the impact of La doping on the structural and dielectric properties of the

BaTiO3 (BTO) ceramic has been investigated. Solid state reaction route has been adopted for the

preparation of the ceramic Ba1-xLa2x/3TiO3 (X=0.01). X-Ray Diffraction was carried out for the Structural

analysis. Absence of any secondary phase indicated the complete incorporation of La in the BTO lattice.

Structure of the ceramic was analyzed by Rietveld Refinement. Presence of different modes in Raman

spectroscopy confirms the single phase formation of the prepared sample. Microstructure was analyzed by

Scanning Electron Microscopy. Temperature dependent dielectric behavior was studied within the

frequency range 1kHz to 1MHz. Degree of diffusion (γ) was calculated from the diffusivity plot showing a

good relaxor like behavior. Temperature Coefficient of Capacitance (TCC) was calculated within the

temperature range -50oc to 150oc. Recoverable energy storage density and the energy storage efficiency ()

was obtained from the P⁓E hysteresis loop. The above findings indicate the synthesized ceramic is a

promising candidate for Multilayer Ceramic Capacitor (MLCC).


Preparation, characterization, and Application of PAN-based carbon - phenolic

composite laminates

Basingala Praveen Kumar 1* , N.V. Swamy Naidu 1 1 Department of Mechanical Engineering,

National Institute of Technology, Raipur

Abstract: The PAN-based carbon fiber and phenolic composites (PC-Ph) without the addition of filer

materials are well fabricated to meet the requirements of thermal protection system. In this paper the

composites were prepared by considering the curing temperature of 1500 C at 100 kg/cm2 for 4hrs under

hydraulic hot press machine. Composition and microstructure of composite laminates are characterized by

X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy

(EDS). The mechanical properties such as interlaminar shear stress (ILSS), flexural strength, compression

strength, bar coal hardness, and density were studied. The thermo-mechanical properties and different

characterization techniques shows that the PC-Ph composites are excellent insulating material for re-entry,

defense, and marine industries as well as other industries.


(Abstract ID: ICPCM21/F/04)

A novel silicon based composite synthesized by Spark Plasma Sintering

Bikash Kumar Samantaray1, Srikant Gollapudi 1

1School of Minerals, Metallurgical and Materials Engineering,

Indian Institute of Technology Bhubaneswar, Bhubaneswar, India 2Metallurgical and Materials Engineering,

Indian Institute of Technology Madras, Chennai, India

Abstract: This work aims at developing a new class of novel silicon-based composite for structural

applications with an objective of improving the inherent fracture toughness of silicon. A multicomponent

Mo – based alloy was used as reinforcement. Silicon has high specific strength comparable to well-known

metal and ceramic-based structural materials. However, silicon suffers from poor fracture toughness with

a value of about 0.8 MPa.m1/2. Increase in fracture toughening can be pursued by crack tip interaction or

crack deflection with a second phase such as fiber or whisker. Hence, a composite of 90 wt.% Silicon and

10 wt.% of the multi-component Mo44Si26Ta5Zr5Fe3Co12Y5 alloy was synthesized using spark plasma

sintering. It was carried out at temperature of 1423 K and applied pressure of 75 MPa with a holding time

of 15 min. The relative density of the sintered composite was found to be 99 %. Indentation fracture

toughness measurements in the composite using a Vickers diamond indenter yielded a value of 2.3

MPa.m1/2 which is higher compared to that of elemental silicon at 1.43 MPa.m1/2. The second phase

provided average hardness of 14 GPa while silicon demonstrated hardness of 12 GPa. The results obtained

from this work will be presented.


Novel Al matrix composites with thermally stable nanocrystalline dispersoids

Ipsita Madhu Mita Das1**, Animesh Mandal, Srikant Gollapudi

School of Minerals Metallurgical and Materials Engineering,

Indian Institute of Technology Bhubaneswar

Abstract: Conventional aluminum metal matrix composites (Al-MMCs) use SiC, SiN, AlN, and Al2O3

ceramics as the reinforcing phase. The current work elucidates an effort to develop a novel aluminium metal

matrix composite wherein a thermally stable nanocrystalline tungsten alloy is used as the reinforcement.

Powders of the thermally stable nanocrystalline W-20 at% Ti dispersoids bearing a grain size of 11 nm

were produced by high-energy ball milling. These powders were then introduced into the aluminium matrix

by the conventional melting and solidification route. The obtained sample was then characterized using

SEM, XRD and Vickers microhardness tester. The resultant composite offered a very high hardness of 625

VHN compared to the hardness of pure aluminium at 25 VHN. The results obtained from this work, which

highlights a significant improvement of the component’s hardness vis-à-vis parent metal, will be presented.



Effect of lubricant and process control agent addition on the properties of Ni-based

alloys developed by powder metallurgy route

1S P Mohapatra, 1S K Sahu, 1D K Mishra, 1R P Dalai


VSSUT Burla, Sambalpur Odisha, India

Abstract: Present work emphasizes the addition of Zinc stearate as a lubricant on the properties of Ni-

based alloys developed by the powder metallurgy route. Lubricant addition helps to reduce the friction

between the die wall with the powder particles. It also lowers the ejection pressure of the powder compacts

during the compaction process. But it creates problems during sintering because a higher amount of

lubricant increases the oxidation rate on the compact surface. Oxidation deteriorates the sintered density,

hardness, and wear resistance of the alloys. Vickers hardness values of the alloys also decrease with

increasing the amount of lubricant weight percentage. The wear rate of the alloys also deteriorates with the

lubricant content. In this work, the amount of lubricant addition varies from 1, 2, and 5wt%. The

experimental result findings suggest that this variation in the density, hardness, wear rate values are only

for the 5wt% lubricant alloys. However, there is not a significant change is observed for 1 to 2 wt% lubricant

alloys. The process controlling agent toluene affects the mechanical alloying process, microstructure, and

mechanical properties of the alloys. The mechanical alloying alloys without adding toluene has higher

strength. Hence from the present work, it is analyzed that a lower percentage of lubricant and process

controlling agent is beneficial.


Effect of thermal ageing on the wear behavior of glass fiber-epoxy matrix composite

with SiC as filler material

1S S Sahoo, 1D K Mishra, 1R P Dalai


VSSUT Burla, Sambalpur Odisha, India

Abstract: The addition of filler materials in glass fiber-epoxy matrix composite enhances the thermal,

physical, and mechanical properties due to good interfacial bonding between the matrix and reinforcement

material. These composite materials are mainly applicable to the aerospace and automotive industries. The

present work focuses on the impact of thermal aging or thermal conditioning on the wear behavior of glass

fiber-epoxy matrix composite with SiC as filler material. The hand lay-up method is employed to fabricate

all the composites. A pin-on-disc wear testing machine determines the wear rate of the composite sample

after thermal aging. The polymer composite sample was heated at 90 and 120℃ close to the glass transition

temperature for 24, 48, 96 hrs respectively in an oven. The wear rates are varying determined by varying

the loads and speed. According to our findings, we observe that the wear rate increases linearly as the load

increases. In addition to this, the wear rate increases with increasing speed when a constant load is applied.

The addition of SiC fillers reduces the wear mass loss, friction coefficient, wear rate, and these are further


reducing with an increase in the SiC percentage. Thermal conditioning also reduces wear. After the wear

test, the scanning electron microscope studies the worn surfaces.


Multi Parametric investigation for improvement in machining characteristics on

Aluminum boron carbide in WEDM

Nitin Kumar Sahu*1, Mukesh Kumar Singh2, Atul Kumar Sahu3, Anoop Kumar Sahu4 1,2,3 Department of Industrial and Production Engineering,

Guru Ghasidas (Central) Vishwavidyalaya, Bilaspur, Chhattisgarh, India, 4Department of Mechanical Engineering,

Guru Ghasidas (Central) Vishwavidyalaya, Bilaspur, Chhattisgarh, India

Abstract: In current manufacturing scenario, highly complex and specific objects are to be manufactured

from advanced materials in various important fields of engineering like missile, space research, nuclear

industry, etc. These advanced innovative materials such as super alloys, ceramics and composites are

difficult to be processed by conventional machining techniques. Wire Electric Discharge Machining

(WEDM) has been accepted as a standard process for conductive metals from the viewpoint of economic

production and is capable to generate complex geometrically in hard materials/components. In the present

study, Aluminum boron carbide is used having outstanding mechanical and thermal properties at eminent

temperatures and also covering broad application in imperative engineering fields. The authors considered

various important WEDM input parameters i.e. Wire Tension (Wt), Wire Diameter (Wd), Wire Material

(Wm), and Peak current (Ip) with Taguchi L9 orthogonal array for optimizing output responses i.e. Material

Removal Rate (MRR) and Surface Roughness (SR) in multi objective optimization realm. The authors have

robustly applied computational Taguchi based TOPSIS (T-TOPSIS). Validation tests were carried out and

show closer relationship with the experimental results. It is found that optimal process parameters setting

is Wt3Wd1Wm1Ip1 for simultaneously maximizing MRR and minimizing SR.


Consolidation of Si3N4-Mo-Al cermet with Y2O3 and Al2O3 as sintering additive in

Argon gas atmosphere

Sushree Sefali Mishra1, Debasis Chaira1 1Department of Metallurgical and Materials Engineering,


Abstract: Silicon Nitride (Si3N4) is a refractory ceramic specifically known for its structural and high

temperature applications. But, Si3N4 being a covalently bonded ceramic, it is very difficult to make it

sinter-able. To overcome this limitation, Molybdenum (Mo) is taken as the reinforcement because of its

high melting point, low coefficient of thermal expansion and high strength at ambient as well as high

temperature compared to other metals. This makes it compatible to form cermet with Si3N4. Aluminium

(Al), having low melting point (660°C), is used here to promote liquid phase sintering. In this work, an


effort is made to fabricate (Si3N4)75-(Mo)15-(Al)10 cermet with Y2O3 and Al2O3 as sintering additives

(15 wt.%). 2 h Milled powders were compacted uniaxially and sintered at 1500°C with 1 h holding in argon

gas atmosphere. The physical, mechanical and tribological properties of the sintered pallets were examined

and the effects of Mo, Al and additives were observed and investigated. The cermet with 7.5wt. % Y2O3

and 7.5 wt. % Al2O3 have shown the optimal relative density of 70.80 % with internal open porosity of

0.66 %, Vickers micro-hardness of 12.19 ± 2.89 GPa, indentation fracture toughness of 7.72 ± 1.2

MPa.m1/2 and wear rate of 0.265 × 10-4 mm3/m. The observed wear mechanisms are discussed.


Synthesis and Characterization of Carbon Quantum Dots Derived from Amine

Modified Paper for Biological Applications

Varsha Lisa John,1 and Vinod T. P.2

Department of Chemistry,

CHRIST (Deemed to be University), Hosur Road, Bangalore -560029, Karnataka, India.

Abstract: We report the synthesis of carbon quantum dots (CQDs, a class of 0D nanomaterials)[1] from

paper (filter paper as well as printing paper) modified with (3-Aminopropyl) triethoxy silane (APTES).

The CQDs consist of a graphitic core and their shell layers are saturated by hydrogen atoms. The quantum

confinement effect (QCE) in CQDs results in discrete quantized energy levels leading to a characteristic

density of states (DoS) and bandgaps. The synthesized CQDs have been structurally characterized by HR-

TEM, AFM, XPS, XRD, Raman, FT-IR. The optical characterizations from UV-visible and PL

spectroscopy indicate the excitation-dependent emissions. CQDs synthesized here are having amine

functional groups on the surface, which facilitated their usage in DNA-binding applications. The CQDs

(derived from filter paper and printing paper) were examined for their DNA binding, DNA cleavage and

cell cytotoxicity properties. These studies effectuated analyzing the interaction of CQDs with CT-DNA and

suggested their potential application as anticancer agents.


Flexural behavior and cost efficiency of glass/carbon inter-ply hybrid FRP

composites under high temperature environment

Srinivasu Dasari1, Pankaj Yadav1, B.N.V.S. Ganesh Gupta K1, Rajesh Kumar Prusty1, Bankim Chandra

Ray1 1FRP Composite Lab, Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela, India.

Abstract: In a recent study, the uses of advanced material gain a potential moment than the conventional

materials. Researchers are paying attention to enhancing the mechanical properties of the material in

different environmental conditions. Inter-ply hybridization technic is convenient and effective way to

improve flexural performance and cost efficiency of the fiber-reinforced polymer composite. In this


research work, the main focus is concentrated on studying the flexural behavior of glass and/or carbon inter-

ply hybrid epoxy composite with changing stacking sequence and hybrid ratio of carbon fibers in

glass/epoxy composite and tested at high temperature (30 °C, 70 °C and 110 °C). The flexural properties

of hybrid composites results have been compared with neat glass/epoxy and carbon/epoxy composites.

Fractured surfaces of samples have been examined using scanning electron microscope to reveal failure

mechanisms and validate the reasons mentioned in the literature regarding alteration in the stacking

sequence of carbon fiber in glass/epoxy composite at tested conditions. These composite materials behave

ductile and matrix softened at high temperature environment. Residual stresses might govern composites

performance due to different coefficients of thermal expansion of matrix and fibers.


Impact of 1D and 2D nano-filler addition on fracture behavior and flexural

performance of glass/epoxy composites

Shiny Lohani1, Srinivasu Dasari1*, Rajesh Kumar Prusty1, Bankim Chandra Ray1 1FRP Composite Laboratory, Department of Metallurgical and Materials Engineering,

National Institute of Technology Rourkela, Odisha, India, 769008

Abstract: The prime advantage of composite material is the flexibility of using multiple materials, each

having different individual properties, yet together they come out stronger. Glass fiber/epoxy polymer

composites (GE) having high strength-to-weight ratio, are popular due to their affordability. However,

delamination is the most common cause of failure in FRP, thereby making fracture toughness an important

property for most applications. Addition of carbon nanotubes and graphene has given successful results in

enhancement of various properties in GE composites. In this research work, various concentrations of nano-

fillers (0.2, 0.4, 0.6 wt. %), each of multi-walled carbon nanotubes (MWCNT) and multi-layered graphene

(MLG), have been incorporated in GE composites. This study examines Mode I interlaminar fracture

toughness and flexural performance of all combinations of composites, comparing the results with respect

to each other and to neat the GE composite. Addition of 0.2 wt.% of MWCNT in GE and 0.4 wt.% of MLG

in GE exhibited highest improvement in flexural strength performance, with 24.58% and 16% enhancement

as compared to neat GE, respectively. The highest mode I interlaminar fracture toughness was shown by

0.6 wt.% MLG in GE (12.62% enhancement than neat GE) and 0.6 wt.% MWCNT in GE (9.5% increment

from neat GE). The fracture mechanisms and microstructural changes have been examined by using

scanning electron microscopy (SEM).



Synthesis and characterization of silicon carbide and graphite reinforced

copper-based hybrid composites

Swadhin Kumar Patel1*

, Narasingh Deep2, Punyapriya Mishra2, Rakesh Roshan1

1Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela, India 2Department of Mechanical Engineering,

Veer Surendra Sai University of Technology, Burla, India

Abstract: This paper emphasizes the preparation of hybrid composites by pressureless and vacuum

sintering process with copper metal matrix reinforced with silicon carbide and graphite particulates. Several

specimens have been prepared by taking the different compositions of Cu, SiC and graphite by weight

percentages. The goal of this research work is to study the behaviour of compression and hardness

properties with the variation of filler materials. The fabricated hybrid composites were characterized by

Scanning Electron Microscope (SEM) and X-Ray Diffractometer (XRD). Metallographic study confirms

the uniformity in the distribution of the reinforcement and the matrix. From the weight analysis, it is clear

that the densification of the composite is achieved at around 9000C. Compression strength is significantly

dependent on the environment of sintering which shows vacuum sintered sample has more compressive

strength than atmospheric condition. In addition, the incorporation of filler loading of SiC and graphite in

the copper matrix boosts the compression strength of the composites to a greater extent. The compression

strength of the multilayered composite (MLC) is considerably higher than the single-layered composite

(SLC). Crack growth resistance of MLC is found to be higher than the SLC. It is further observed that the

grain size greatly influenced the hardness of the composite.


Observation of Order-Disorder Phase Transition in Sheared Nanofluids

Atanu Kabiraj*, Satchidananda Rath

School of Basic Sciences,

Indian Institute of Technology Bhubaneswar, Jatni, Odisha-752050

Abstract: We have investigated the flow properties of a nanofluid (NF) -stable suspension of oleic acid-

coated Fe3O4 in kerosene under a sheared system. A distinct cooperative flow mediated by the gelation

temperature (Tg) leading to an order-disorder transition state is evidenced within a definite and short range

of temperatures, around 86 oC. Further, the moderation of the phase transition phenomena of the NFs

dispersion has been achieved through the particle size- and concentration-dependent viscosity versus

temperature studies. It provides a unique visco-elastic behavior of the nanofluid to gel state follows first-

order –type phase transition, which has various technological applications in heat engines.



A facile one-pot synthesis of magnetite graphene derivative and its application in

wastewater treatment

Prateekshya Suman Sahu1, Biswajit Saha1,2* 1Department of Chemical Engineering,

National Institute of Technology Rourkela, (NIT Rourkela) Sector 1, Rourkela, Odisha 768009, India 2Centre for Nanomaterials,

National Institute of Technology Rourkela, (NIT Rourkela) Sector 1, Rourkela, Odisha 769008, India

Abstract: This work reports a one-pot synthesis of Fe3O4 embedded RGO (RGO-Fe3O4) hybrid

nanocomposite and its application to remove organic and inorganic pollutants. Compositional and

morphological analysis such as Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, X-

ray diffraction (XRD), Scanning electron microscopy supported with energy dispersed X-ray spectroscopy

(SEM-EDX), and vibrating sample magnetometer (VSM) of synthesized RGO-Fe3O4 nanocomposite

confirmed the uniform distribution of Fe3O4 nanoparticles on RGO sheets. Because of its large surface area

and magnetic behaviour, this material is an ideal candidate for removing both organic and inorganic

pollutants. The superior performance on eliminating toxic substances like Pb2+ and methylene blue by

rGO/Fe3O4 aqueous suspension was observed. The maximum adsorption capacities, kinetic behaviour, and

isotherms for Pb2+ and methylene blue were evaluated. In both cases, adsorption isotherms were fitted with

the Freundlich model and second-order kinetic model with maximum adsorption. The results obtained in

this study demonstrate the effective removal of organic and inorganic pollutants, making this

nanocomposite an effective and environment-friendly absorbent with great potential in the field of water

purification.


Temperature and Magnetic field controlled Dielectric-relaxation and

Magnetodielectric response in KBiFe1.9Co0.1O5 polycrystalline

K. Chandrakanta1, R. Jena1, A. K. Singh1

1Department of Physics and Astronomy,

National Institute of Technology, Rourkela-769008, Odisha, India,

Abstract: Cobalt (Co) substituted brownmillerite KBiFe2O5 (KBiFe1.9Co0.1O5: KBFCO) is synthesized by

conventional solid-state reaction route. Rietveld refinement of X-ray diffraction data confirms the pure

phase of KBFCO and crystallizes in monoclinic structure with P2/c space group. Surface morphology

reveals that the grains are randomly distributed, and the average grain size varies in the range of 1-5 μm.

The Energy-Dispersive X-ray spectroscopy confirms the chemical constituents of KBFCO are very close

to the molar (1:1:2) ratio. The temperature (10 K to 300 K) and frequency (500 Hz to 1 MHz) dependent

dielectric permittivity value decreases approximately 50% in the presence of the magnetic field (1.3 T). It

confirms the signature of the Magnetodielectric (MD) effect in the KBFCO5 sample. The magnetic field

(± 1.3 T) variation MD loop resembles the inverse-butterfly type MD behavior for the system. Both MD


hysteresis and strength decrease with a decrease in temperature. A noticeable suppression in the dielectric

relaxation is obtained by applying a 1.3 T magnetic field in the temperature range of 250 K to 300 K. The

measured MD effect is observed at high frequency (30 kHz), suggesting the intrinsic effect is dominated in

the probing temperature range. Observation of similar trends in magnetic field-dependent MD and magnetic

loss (ML) loop rules out the existence of magnetoresistance origin MD effect. These results confirm that

KBFCO has an excellent MD response even for a small applied field and holds great interest for future

device applications.


Investigation of dielectric, impedance, and magnetodielectric behavior in Bi5Ti3FeO15

-Bi2Fe4O9 composites prepared by sol-gel modified method

Rasmita Jena1, K Chandrakanta

1, A.K. Singh

1

1Department of Physics and Astronomy,

National Institute of Technology Rourkela, Odisha 769008, India

Abstract: We report the detailed studies of the dielectric, impedance, and magnetodielectric properties of

the sol-gel synthesized (1-x) Bi5Ti3FeO15-(x) Bi2Fe4O9, x = 0.1 composites. The Rietveld refinement of X-

ray diffraction (XRD) data confirms the presence of mixed phases Bi5Ti3FeO15 (A21am) and Bi2Fe4O9

(Pbam) with the orthorhombic crystal structure. The average grain size of the sample is calculated from the

Scanning Electron Microscopy and found to be ~0.96 µm. The Room temperature dielectric behavior of

the prepared composite was demonstrated over a frequency range (102 Hz to 106 Hz) and at a fixed field of

(0 T to 1.3 T). The decreasing trend of dielectric dispersion and loss signifies the presence of –ve

magnetodielectric (MD) and magneto-loss (ML) in the composite. To analyse the origin of the observed

MD effect, frequency-dependent magnetoresistance (FDMR) through impedance spectroscopy has been

carried out. At room temperature, magnetic field-dependent MD and ML exhibit the maximum MD and

ML coupling is about ~ -0.19% and ~ -0.36% at 50 kHz, respectively. The obtained MD response in this

composite is due to the grain (capacitive) effect. These results establish a relation between the electric and

magnetic order in the composites and extend its application in the field of magnetic memory and sensor

devices.


An experimental study on use of biopolymer for sustainable stabilization of slopes

Abhipsa Kar1*, Manas Ranjan Das1 and Dipanjali Mohapatra1 1Siksha ‘O’ Anusandhan

(Deemed to be University), Jagamara, Khandagiri, Bhubaneswar, India

Abstract: Strength degradation of weathered soil is a major cause of slope failures worldwide. Hence, a

proper remediation technique is still a scope of research. Out of two categories of remediation technique,

one category relies on external structures supporting the slope which is expensive and the other one relies

on stabilizing agents which is economical. In the present study, an attempt has been made to find a solution


for sustainable stabilization of soil on slopes using biopolymer. Biopolymers are edible and have no

injectability issues. Hence, soil treated with biopolymer do not inhibit plant growth and thus, they are

environment friendly, economical and socially inclusive. Two promising biopolymers, namely, Xanthan

Gum which is amorphous and Gelatin which is crystalline, have been chosen for experimentation. Effect

of biopolymer concentration and curing period on improvement in strength and durability characteristics of

biopolymer treated base soil have been experimentally investigated. Unconfined Compressive Strength

(UCS) has been chosen as a measure of strength characteristics. Weight loss, length change and volume

change have been chosen as measures of durability characteristics. Results confirm the feasible application

of biopolymers in sustainable slope stabilization. Test results indicate that optimum concentration of

Xanthan Gum as a value between 1.5% to 2% and that of Gelatin as 1.25%. Optimum curing period has

been observed to lie between 7 and 14 days.


Dual action of polarised Zinc Hydroxyapatite - Guar gum composite as a next

generation bone filler material

Sapna Mishra1, Subhasmita Swain2, Rinmayee Praharaj2, Tapash Rautray2 1Dept. of Physics,


Bhubaneswar – 751030, Odisha, India 2Biomaterials and Tissue Regeneration Lab.,


Bhubaneswar – 751030, Odisha, India

Abstract: Implantable filler materials modified with Zn is a growing trend in the engineering of

biomaterials for improvement of bone regeneration. Hydroxyapatite is used as a vital component in

biocomposites and surgical implant coating. The purpose of this experiment was to synthesize Zn2+

substituted hydroxyapatite to obtain a final composite of Guar gum- zinc substituted hydroxyapatite

(ZnHA-GG) composites and the development of surface negative charge on ZnHA-GG composite was

carried out using a Corona Poling unit and the assessment of biocompatibility and antibacterial activity

were carried out. In vitro culture of MG-63 osteoblast cells and S. aureus bacterial cells were then carried

out on polarized composites in conjunction with non-polarized composites to find the effects of polarization

on adhesion of cells, osteogenic differentiation as well as antibacterial efficacy. It was inferred that

incorporation of Zn2+ ions into composites of Guar Gum hydroxyapatite structure increased the osteoblasts

spreading, boosts antibacterial activity on the composite surface, and amplifies RUNX2, osteocalcin, type

I collagen formulation by osteoblasts.



Polarised chitosan with Cu substituted hydroxyapatite composite exhibits enhanced

osteogenicity and antibacterial efficacy in vitro

Priyabrata Swain1, Subhasmita Swain2, Tapash Rautray2 1Dept. of Physics, Institute of Technical Education and Research,

Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar – 751030, Odisha, India 2Biomaterials and Tissue Regeneration Lab., Institute of Technical Education and Research,

Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar – 751030, Odisha, India

Abstract: For biomedical applications, modified implantable inorganic bone filler materials having

substitutional copper shall be useful for improved bone regeneration. This advanced bone tissue engineering

should possess a remarkable biocompatibility and osteoconductivity in order to hasten the process of bone

repairing. The primary objective of this study is to synthesize Chitosan (CS) with Cu substituted

Hydroxyapatite (CuHA-CS) composites and the composites were electrically negatively polarized to be

used as a biomedical implant material. The specimens were characterized to assess their behaviour towards

biocompatibility and antibacterial properties. Then the composites were then cultured with MG-63 human

osteoblast like cells and S. aureus bacterial cells for studying their osteogenic and antibacterial behaviour.

It was inferred from the study that polarized composites of CuHA-CS structure enhanced the spreading of

the osteoblasts and helped with the antibacterial activities on the surface of the composites with enhanced

RUNX2, OSTEOCALCIN, type-I collagen production on these composites.


Corona poled gelatin - magnesium hydroxyapatite composite demonstrates

antibacterial action with osteogenicity

Abhishek Patra1, Subhasmita Swain2, Rinmayee Praharaj2, Tapash Rautray2 1Dept. of Physics, Institute of Technical Education and Research,



Abstract: Bone filler materials exhibit excellent biocompatibility and osteoconductivity clinically and are

used to promote the repair of bone defects. These materials have attracted the attention of many researchers

to investigate their effect on bone growth with electrically active properties. In the present study, bone filler

composite Ca8Mg2(PO4)6(OH)2 – Gelatin (MgHA-GEL) was fabricated by freeze-drying method. The

primary objective of this study was to evaluate the biomedical properties of MgHA-GEL composite after

negatively poling its surface and the corresponding composite was cultured with MG63 osteoblast like cells

and P. aeruginosa bacterial cells. The in vitro results showed that the cell viability was increased after 7 and

14 days of culture and along with increase in the relative expression of RUNX2,COL 1 and OC osteogenic

markers by 29%, 18% and 28%. Based on the above results it can be concluded that these polarized MgHA-

GEL composites have promising application for bone tissue engineering with excellent osteogenic property.



Polarised strontium hydroxyapatite - xantham gum composite exhibits osteogenicity

in vitro

Shubha Kumari1, Subhasmita Swain2, Tapash Rautray2

1Dept. of Physics, Institute of Technical Education and Research,



Abstract: Clinical applications of bone tissue engineering demand that bone filler materials should be

extremely biocompatible and osteoinductive so as to accelerate the repair of bone defects. Human bones

when under stress generate small electric charges there by acting as a piezoelectric material. This has

prompted researchers to investigate the properties of electrically active materials on bone tissue

development. Herein, fabrication of bone filler material SrHAp-Xanthan gum was done by a freeze-drying

method. This study was directed to explore the effect of growth of surface charges on SrHAp-Xanthan gum

composite with respect to osteoblast activity in an artificial environment. Polarization of composites were

carried out to induce negative charge on the composite surface and the specimen was then was seeded with

MG-63 cells . After 7 and 14 days of culture, cell viability of polarized composites increased as compared

to non-polarized composites. On day 14 of culture, the relative expression of RUNX2, COL1, and OC on

polarized composites were elevated by 32%, 20%, and 28% respectively as compared to non-polarized

composites. The present in vitro results suggest that polarized composites can be favoured over non-

polarized composites (as implant materials) as they enhance osteogenesis and therefore present optimistic

applications for bone tissue engineering.


Highly stretchable reduced graphene oxide-based strain sensor for monitoring of

physical activities

Ravi PrakashVerma1, Prateekshya Suman Sahu1, Ajinkya Dabhade1, Biswajit Saha1,2 1Department of Chemical Engineering,

National Institute of Technology Rourkela, (NIT Rourkela) Sector 1, Rourkela, Odisha 769008, India 2Centre for Nanomaterials, National Institute of Technology Rourkela, (NIT Rourkela) Sector 1,

Rourkela, Odisha 769008, India

Abstract: Wearable electronics will be the future for the intelligently monitoring of human health and

physical activities, which attracts researchers to work in the field of wearable electronics. The traditional

strain sensors are inflexible, which is not desirable for integration on uneven surfaces like the human body

and wearable textiles. The flexible strain sensor has made it possible to detect various physical activities

and has multiple applicability in human-machine interface, soft robotics, smart farming, smart textiles, and

security. This work reports a highly stretchable, sensitive, long-run durable, strain sensor fabricated using

electrochemically synthesized reduced graphene oxide (rGO) and silicone sealant. The rGO has been


characterized using an X-ray diffractometer (XRD), Raman Spectroscopy, and Scanning electron

microscope (SEM). The fabricated sensor exhibited stretchability of 120% from the original length, the

overall sensitivity (gauge factor) of more than 4100, and durability of more than 4500 cycles at 15% of

strain. The combined desirable result of the sensor has been utilized in the monitoring of physical activities

such as wrist-twisting, finger movement, and leg movement.


Effect of In-situ temperature and Loading rate on the Out-of-plane

performance of Carbon nanofiber embedded Glass fiber / epoxy composite

R N Kar, A O Fulmali, B N V S G Gupta K, R K Prusty, B C Ray

FRP Composite Laboratory, Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela 769008, India

Abstract: This article studies the influence of in-situ temperatures (30°C, 60°C, 90°C, and 120°C) and

loading rates (1 mm/min and 100 mm/min) on the out-of-plane flexural performance of Glass fiber

reinforced epoxy composite with and without carbon nanofiber (CNF) (GE and CNF-GE). At 30°C in-situ

temperature and 1mm/min loading rate, CNF-GE composite showed significant improvement in flexural

properties over GE composite due to enhanced stress transfer between fiber and epoxy. With the increase

in temperature, thermal stresses were induced at the fiber/matrix and CNF/matrix interface and the polymer

softening, which caused a decrement in the flexural response of the composites. At 120°C in-situ

temperature and 100 mm/min loading rates, CNF-GE composite showed the lowest flexural properties than

GE composite due to micro-cracks generation at the CNF/matrix interface. The failure mode in these

composite was studied through SEM images by analyzing the fractured surface's interfacial bonding and

river-line.


Detection of pesticide using Electrochemical sensor

Ashirbad khuntia*, Adhidesh S Kumawat, Madhusree Kundu

Chemical Engineering Department

NIT Rourkela

Abstract: The increased use of pesticides has a deep impact on human health as well as the environment

all over the world. The increased population of world has intensified demand of food, which escalates use

of pesticide in agricultural fields. The pesticides contaminate food, soil, and water bodies. Present article

focuses on detection of pesticide in runoff water from agricultural field. Various analytical methods could

be used for determining the concentration of pesticides, which include spectrophotometry, Fluorometry,

mass spectroscopy, capillary electrophoresis, and gas or liquid chromatography. These methods provide

accurate results but there are certain disadvantages such as being time-consuming, limited to laboratories,

expensive, and have to be operated by highly trained technicians. Field deployable and portable

electrochemical sensor could be a suitable solution for this problem. An electrochemical sensor for pesticide


detection based on copper and reduced graphene oxide nanocomposite was developed. Cu-rGO was

synthesized using co-precipitation method and GO was synthesized using modified hummer’s method.

Scanning Electron microscope, X-ray diffraction and Raman spectroscopy confirmed successful synthesis

of nanocomposite. Surface morphology of nanocomposite was obtained from SEM analysis. Cyclic

voltammetry was performed using corrtest potentiostat and a three electrode setup for determination of

electrochemical behavior of Cu-rGO nanocomposite and its interaction with malathion. Cu-rGO

nanoparticles were deposited on the surface of glassy carbon electrode and used as working electrode and

Ag/Agcl electrode as reference electrode and platinum wire as counter electrode was used for detection of

pesticide. Altogether Cu-rGO modified electrode produced very good result for determination of pesticide

in runoff water sample of agricultural field.


A simple novel method for fabrication of surfactant free hydroxyapatite microsphere

Saswati Mishra1, Tapash R. Rautray2

Department of Biotechnology,

Gandhi Institute of Engineering and Technology University, Gunupur – 765022, Odisha, India

Biomaterials and Tissue Regeneration Laboratory, Institute of Technical Education and Research,

Siksha ‘O’ Anusandhan University, Khandagiri Square, Bhubaneswar – 751030, Odisha, India

Abstract: Adoption of porous 3D microspheres as bone filler materials in bone tissue engineering has been

extensively reported. Such microspheres preferably use both organic and inorganic composite materials,

with the ability to mimic the bone matrix. Several methods have been reported for synthesis of porous

structure 3D microspheres but surfactant free emulsion dominates over others owing to its better efficacy,

reduced toxicity, improved patient compliance and convenience. In this work we report simple water-in-oil

micro-emulsion technique to fabricate novel hydroxyapatite (HA) microspheres. A biocomposite blend

comprising of HA, polyvinyl alcohol and gelatin were subjected to the water-in-oil emulsion and after

sintering, porous, rigid and spherical microspheres were obtained. Microspheres were further characterized

by scanning electron microscopy, energy dispersive X-rays analysis and X-ray diffraction. Bioactivity of

the synthesized hydroxyapatite microspheres were checked by immersing the sample in simulated body

fluid environment. The results obtained ascertained HA microsphere to have good potential for bone tissue

engineering.



Osteogenicity and antibacterial property of Polarised HA-UHMWPE composites as

orthopedic implant biomaterial

Subhasmita Swain, Itishree Priyadarshini, Tapash Ranjan Rautray

Biomaterials and Tissue Regeneration Lab., ITER,


Abstract: For developing a biomedical implant as a bone substitute material, the implant has to be

developed in a way so as to accept the surrounding tissues anatomically and physiologically. Because of its

enhanced wear and impact resistance and low coefficient of friction, ultra-high molecular weight

polyethylene (UHMWPE) can be used as a biomaterial. The bioinert property can be compensated by using

this material in combination with hydroxyapatite (HA). Since natural bone is a piezoelectric material,

mimicking of this property was partially achieved by polarizing this synthesized composite at high voltage.

The electrical polarization of the prepared composites were carried out and osteoblast cells and S. aureus

bacterial cells were seeded on these surfaces.The cell viability study exhibited significant increase in

osteoblast cells on both the polarized specimens on day 7 and day 14. The cell viability on the polarised

composites were found to be elevated after 7 and 14 days of culture as compared to the unpolarized

composites. The osteogenic gene expression of RUNX2, COL1, and OC on the polarized composites were

increased by 35%, 21%, and 30% respectively as compared to the unpolarized specimens on day 14 of

culture. It was observed that there was significant decrease in S. aureus during all spans of time for the

polarized specimens and the polarized HA+UHMWPE specimens showed higher efficacy in reducing the

number of bacterial cells. Because of the absence of electric polarization, the unpolarized specimen did not

show sufficient antibacterial property. It can be inferred from the present investigation that the negatively

polarized HA+UHMWPE composites may be used as a preferred implant material as compared to the

unpolarized HA+UHMWPE composites.


Green synthesis and characterization of Cerium Oxide and Ni-doped Cerium Oxide

nanoparticles

S. Muduli1, T. Patra1, T. R. Sahoo1 1Department of Chemistry, School of Applied Sciences,

KIIT Deemed to be University, Bhubaneswar-751024, Odisha, India

Abstract: Green synthesis of un-doped and Ni-doped CeO2 nanoparticles (NPs) was performed by sol-gel

method using Acacia Concinna fruit extract for different applications. Here we have obtained NixCe1-xO2

(where x = 0, 2, 4, and 6% w/w) NPs in a simple and cost-effective way. The as-synthesized samples were

characterized by powder X-ray Diffraction (XRD), Fourier Transform–Infrared spectroscopy (FTIR),

Scanning electron microscopy (SEM) and Energy dispersive X-rays (EDX). The peaks of XRD correspond

to the cubic phase of CeO2 crystalline structure. It also reveals that there was peak shift towards lower 2θ

angle, for the doped samples indicating the doping of Ni. The average crystallite size of the CeO2 NPs was


found to be 22.7 nm and for Ni-doped samples, it varied from 46.49 nm to 54.02 nm. SEM and EDX

analysis signifies the morphology and the composition of the as-synthesized sample. The un-doped CeO2

exhibit porous network like morphology whereas Ni doped CeO2 shows flake morphology. FTIR analysis

shows characteristic absorption band for CeO2 NPs at 1118 cm-1 and 1382 cm-1.


Thermal and Acoustic Properties Evaluation of Waste Tire And Textile Reinforced

Epoxy Composites

Tushar Kanta Mahapatra1, Suchismita Satapathy2 1,2Department of Mechanical Engg

KIIT University, Bhubaneswar

Abstract: Waste management is been a fundamental ecological issue since most recent couple of many

years. It has been seen that the amount of waste increments due to the expanding globalization,

industrialization, urbanization, population and so on. So recycling of these produced wastes from these

industries is a big relief to the human beings and the nature. Also increase of industrialization and

urbanization so much noise is produced. This noise has turned into an expanding general medical issue and

has become genuine noise pollution in our day to day life. Now it’s the time to control and diminish noise

from traffic, industries and establishments in houses. So the utilization of reused of waste tire and waste

textile in the development of noise boundaries can assist with combatting the current issues of both garbage

removal and noise contamination. So this paper gives an experimental knowledge on sound absorption

coefficient and thermal insulation of waste tires and textile reinforcement composite with epoxy. Successful

Thermal conductivity and sound absorption coefficient (α) of different ratio of waste tires and textile

combined with epoxy composites are inspected by making the sound absorption material by fundamental

hand lap strategy. The thermal conductivity (Keff) regards are assessed with the UnithermTM model 2022

analyzer as shown by the ASTM standard E-1530. Whereas, sound absorption coefficient esteems are

assessed in impedance tube machine. With up degree in heat security and sound absorption limit, these

reinforced epoxy composites can track down their application in sound insulation are like workshop,

Automobile sector, food compartment and other relative warm and acoustic assurance applications.


A Review on the Effect of Welding Processes on Mechanical Properties of P91 Steel

K. C. Sunhare*, Agnivesh Kumar Sinha, S. D. Patle, H. K. Narang


National Institute of Technology Raipur, Chhattisgarh, India-492010

Abstract: The present review is based on the demand of high thermal efficiency of power plants. The creep

strength enhanced ferritic (CSEF) steels that can withstand such high pressure of 170-230 bar and

temperature of 600- 650°C such as Grade P91 and Grade P92 are the materials of choice for supercritical

thermal power plants. From last two decades, most of power plants have been employing P91 steel for

boiler steam pipes due to its remarkable mechanical properties at elevated temperature. However,


mechanical properties of P91 steel components must be assessed after welding processes. Various welding

processes like submerged arc welding, tungsten inert gas welding and metal inert gas welding are often

used for welding P91 steel. And welding parameters like welding current, arc voltage, welding speed,

electrode diameter and flux play vital role in deciding the post welding mechanical properties of P91 steel.

This review focuses on the effect of welding parameters on mechanical properties (hardness, toughness and

tensile strength) of P91 steel. It also brings out the insight pertinent to the modifications made in various

welding methods for the improvement in hardness, toughness and tensile strength of P91 steel. Based on

the comprehensive review of literatures, research gaps along with future scope of research is also presented

which will be beneficial for the upcoming researchers in this research domain.


Mechanical and Thermal properties of plasma irradiated GO/Glass fibre/epoxy

hybrid composite

Dibyajyoti D. Pradhan1, Monalisa Parida2, T. Badapanda2, A. P. Chakraverty1, *, S. Beura13 and U. K.

Mohanty3 1School of Physics, Gangadhar Meher University,

Amruta Vihar, Sambalpur-768004, Odisha, India 2Department of Physics,

C. V. Raman Global University, Bhubaneswar-752054, Odisha, India 3Department of Mechanical Engineering, ITER,

SOA (Deemed to be) University, Bhubaneswar-751030, Odisha, India

Abstract: Thermo-mechanical properties of glass fibre based polymer (GFRP) composites play a vital role on

achieving ultimate curing property for light-weight corrosion-free applications. Plasma radiation containing

ions, charge particles and neutral atoms can penetrate up to certain depths of polymer composite resulting in

improvement in post-curing strengthening. Also, incorporation of few weight percent of carbon based nano

fillers can cause increase in interfacial properties up to considerable extent. Keeping this in mind, the present

work is approached to fabricate conventional glass fibre/epoxy (GF/Epoxy) and graphene oxide (o.5 wt %) filled

glass fibre/epoxy (GO/GF/Epoxy) hybrid composite and to treat such sample to plasma radiation. GO powder

was synthesized by modified Hummer’s method. The as-synthesized GO was confirmed through XRD and

Raman spectroscopy. Both the composites were exposed to plasma irradiation (30 watt) for 5, 10, 15, 20, 25

and 30 minutes. Inter laminar shear strength (ILSS) values were determined through 3-point bend test of the

irradiated composite specimens. With increase in plasma treatment period, ILSS was increased with higher rate

for GO/GF/Epoxy composite. Low temperature differential scanning calorimetry (DSC) test of the plasma

irradiated composites reveals increase in glass transition temperature (Tg) values with increase in plasma

irradiation periods. Tg is found maximum for GO/GF/Epoxy composite at 25 mins of plasma irradiation. SEM

fractograph of both the composite specimens reveals various types of failure modes. In the fractographic image

of plasma treated GO/GF/Epoxy composite, adequate extent of interfacial adhesion between GO and epoxy

resin was observed.



Thermal Behaviour and Vickers Indentation Response of Random Discontinuous

Carbon/Epoxy Composites with Nano-Alumina Fillers

Shubham1, Amrit Jena1, Rajesh Kumar Prusty1, Bankim Chandra Ray1 1FRP Composite Materials Group, Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela, India-769008

Abstract: The glass transition temperature (Tg) of any thermosetting polymer-based composites is one of

the vital parameters, which helps in stipulating its service temperature. In contrast, Vickers indentation has

long been a typical approach for material characterisation because it provides a simple, affordable, non-

destructive, and objective way of assessing fundamental qualities from tiny quantities of materials. This

study quantifies the thermal behaviour of randomly oriented discontinuous carbon fiber (RODCF)

reinforced epoxy composites embedded with aluminum oxide (Al2O3) by its glass transition temperature

(Tg). Further, the hardness of the composite samples is measured using the technique of Vickers indentation.

10 per hundred resin (phr) RODCF in terms of weight reinforced in epoxy was incorporated with 0, 1 and

2 phr of Al2O3. Neat epoxy was also tested for reference. It was found that compared to neat epoxy,

RODCF/epoxy possessed a higher value of Tg and Vickers Hardness (HV). Tg increased further with the

addition of Al2O3. The HV change observed was insignificant at 1 phr Al2O3 incorporation, but a substantial

increment was observed at 2 phr Al2O3 addition to the RODCF/epoxy.


Effect Of Dolomite Powder On Properties Of Concrete As A Partial Replacement Of

Cement

A. Bisoi(1) and N.Dalai(2) 1Research Scholar, Department of Civil Engineering,

Parala Maharaja Engineering College, Berhampur-761003, Odisha, India 2Assistant Professor, Department of Civil Engineering,

Parala Maharaja Engineering College, Berhampur-761003, Odisha, India

Abstract: This work presents the results of experimental investigations performed to evaluate the effect of

dolomite powder on mechanical properties of concrete made by partially replacing dolomite powder with

cement. For this 5%, 10%, 15% of dolomite powder were replaced by Portland Pozzolana cement.The

compreesive strength and split tensile strength of concrete with dolomite powder were compared with those

of reference specimens(control mix).The test results indicate that replacement of dolomite powder on

replacement of cement up to 10 % increases compressive strength strength of concrete after which the

strength is reducing. Similarly the test result indicates the addition of dolomite powder significantly

increases the split tensile strength of concrete.



Green processing of alumina nano material for thermal application

J Sa, G Nath

Department of Physics,


Abstract: The morphological parameter such as shape, size has significant contribution to thermal

applications in different industry which depends on the method adopted for the processing of nanoparticles.

As a sustainable, reliable and eco-friendly process, green technique of synthesis of nanoparticle from

different natural extract has practical importance for wide range of nano materials. Practically it has been

observed that nanofluid having low value of thermal conductivity caused by shape of the nano particle

increases considerably due to application of green technique. The present work included the synthesis of

aluminum oxide nanoparticle from aluminum nitrate anhydrite with a bio-based, low-cost green method.

The crystal structure and surface shape of the synthesized aluminum oxide nanopowder were studied using

the X-ray diffraction technique (XRD) and scanning-electron-microscopy (SEM) electron transmission

microscopy (TEM). The magnetic nanofluids are characterized by experimental technique such as FTIR,

UV-visible and particle distribution with particle size analyzer. Thermal conductivity of the alumina nano

fluid is found to be varies from 0.5378W/mK – 0.7299W/mK with enhancement from 1.8% to 21.44% for

weight percentage 0.01 to 0.05 in variation of temperature from 30oC to 50oC as compared to reported

works.

(Abstract ID: ICPCM21/G/01)

A Computational Micromechanics Approach to Study the Influence of Interphase

Region on the Elastic Modulus of Unidirectional Glass/Epoxy Composites

Shubham1, Rajesh Kumar Prusty1, Bankim Chandra Ray1 1FRP Composite Materials Group, Department of Metallurgical and Materials Engineering,

National Institute of Technology, Rourkela, India-769008

Abstract: This study briefly discusses the role of interphase in the elastic moduli of unidirectional (UD)

fiber-reinforced polymer (FRP) composite materials. For this UD glass fiber was chosen as reinforcement,

and epoxy was selected as the matrix. This research acknowledges Halpin-Tsai's theory of the requirement

for a simple equation but also believes that the method can be enhanced by using a finite element (FE)

approach that considers interphase. Experimental validation was initially used to verify the accuracy of the

established equations of the rule of mixing (ROM), Composite Cylinder Assemblage (CCA), Chamis,

Halpin and Tsai, and Puck. Chamis equation was found to be most reasonable. Secondly, the FE approach

in which interphase has been included was used to estimate the elastic moduli. The FE model without

interface and experimental result were taken as a reference. The influence of interface ratio and interfacial

properties on the homogenised elastic properties of the unidirectional fiber-reinforced polymer (UD-FRP)

composites is analysed. The properties of the interfacial region are varied, having different influence

percentage of fiber phase and matrix phase with interface ratio of 0.1, 0.2 and 0.3. The study showed


interface ratio and interfacial properties to have a critical influence on the overall elastic property of the

UD-FRP composites.


Correlation between heat generation and mechanical properties in friction stir

welding

Prashant Prakash1, Ravi Shankar Anand2, Sanjay Kumar Jha3 1 Production Engineering Department,

Birla Institute of Technology, Mesra, Patna Campus, Patna, Bihar, Pin Code 800014, India 2 Mechanical Engineering Department,

Birla Institute of Technology, Mesra, Patna Campus, Patna, Bihar, Pin Code 800014, India 3 Production Engineering Department,

Birla Institute of Technology, Mesra, Jharkhand, Pin Code 835215, India

Abstract: This article presents the correlation between temperature profile and mechanical properties of

the friction stir welded 6061 aluminum alloys. The four different tool pin profile (cylindrical, conical,

cylindrical-conical and stepped-conical), welding speed (40, 63, 80 and 100 mm/min) and tool rotation

speeds (710, 900, 1120, 1400 rpm) have been taken as input process parameters. The experiments were

conducted in vertical milling machine (model no. HMT FN2H). The machine unit has spindle speed range

of 45 to 1800 rpm and feed range of 16 to 800 mm/min. The temperature distribution along the thickness

of the work piece have been analyzed by computational fluid dynamics (CFD) and mechanical properties

of the weld joint such as ultimate tensile strength, fracture behavior and grain size in the weld zone are

analyzed by experimental techniques. The correlation results show that the peak temperature affects the

mechanical properties of the weld joint. This observation shows that the generated peak temperature affect

the mechanical properties of the weld joint. Tool rotational speed appears to be the most significant process

variable. The generated peak temperature between 70-90% of the work piece solidus temperature gives

better mechanical properties for all tool pin profile at the moderate tool rotation speed. The stepped-conical

pin profile tool maximum peak temperature which shows better mechanical properties among all tool pin

profile.


High-temperature tensile deformation behavior and structure evolution of metallic

glass composite nanowire: a molecular dynamics study

Ganesh Katakareddi, Natraj Yedla

Computational Materials Engineering Group, Department of Metallurgical and Materials Engineering,

National Institute of Technology Rourkela, Odisha, 769008

Abstract: Nanowires have been identified as potential candidates for nanoelectromechanical systems.

Molecular dynamics (MD) simulation study via LAMMPS (Large-scale Atomic/Molecular Massively

Parallel Simulator) platform has been carried out to investigate high-temperature deformation behavior and


structural changes in the metallic glass composite nanowire (MGCNW) under the uniaxial tensile loading.

The MGCNW model is created by embedding spherical copper crystallites (diameter = 50 Å) in the

Cu50Zr50 metallic glass matrix with the dimensions of 136 Å width (x-axis) × 544 Å length (y-axis) × 80 Å

thick (z-axis) comprising of 350,144 atoms. The embedded atom method (EAM) is used to model the

interactions between Cu-Zr atoms. Uniaxial tensile simulations have been carried out at a range of

temperatures from 450 K to 650 K at a strain rate of 109 s-1. The stress-strain curves show that the maximum

stress decreases as the test temperature increases. The observed maximum stress values are 1.93 GPa, 1.86

GPa, 1.76 GPa, 1.63 GPa, 1.53 GPa at temperatures of 450 K, 500 K, 550 K, 600, 650 K, respectively. The

atomic shear strain analysis has been performed by using the visualization tool OVITO to identify the

structural analysis in the matrix. The analysis shows that the deformation in the metallic glass matrix is

through shear band initiation and propagation. The structural changes in the crystalline particles have been

analyzed by common neighbor analysis (CNA), and it shows that the formation of stacking faults of HCP

and BCC structure atoms from the FCC structure at the interface between metallic glass matrix and

crystalline precipitate.


Numerical Analysis of laser melting of Alumina Coated Steel

Rajat Kumar Deya, Satya Prakash Kara, and P. Chandrasekhar aSchool of Mechanical Engineering,

KIIT Bhubaneswar, 751024, India

Abstract: This article presents a numerical investigation of laser melting of alumina coated steel specimen.

After the laser is irradiated, the specimen is heated and the temperature increases. When the temperature

reaches the melting temperature, a melt pool is generated. However, the melting temperature of alumina

and steel are different. Therefore, it is interesting to observe the progress of melt front in the two layers of

materials in this article. As the laser pulse is repetitive in nature, some region gets solidified which is already

melted during the cooling period of the irradiation. So, the effect of laser parameters on the shape and size

of the melt pool is discussed in detail with an axisymmetric numerical model. The temperature field is

obtained from the solution of the laser heating equation coupled with the flow equation. Finite Volume

Method is used to discretize the governing equations. The Tri-Diagonal Matrix algorithm is used to solve

the algebraic equation. The enthalpy porosity method is used to capture the melt front.



Simulation, numerical analysis and comparision of cutting parameter during

machining of AL6061-T6 and Ti6AL4V alloy with various cutting tool

D Singha1a, A Mandal2 , S Kar1b

1a M.Tech Scholar, National Institute of Technology Silchar, Assam 788010, India 1b Assistant Professor, National Institute of Technology Silchar, Assam Pin 788010, India

2M.tech, Indian Institute of Technology Kharagpur, West Bengal 721302, India

Abstract: This work focuses on studying the effects of processing conditions on the Johnson–Cook material

model parameters for orthogonal machining of aluminium (Al 6061-T6) alloy and Ti6AL4V. They are

highly corrosive resistant materials. Two sets of parameters of the Johnson-Cook material model describing

material behaviour of both alloy were investigated by comparing cutting forces, chip morphology and chip

tool interfaces temperature. A 2-dimensional finite element model was developed and validated with the

results of published literature. Cutting tests were conducted at low, medium, and high-speed cutting speed,

mainly 60 m/min, 90 m/min & 120 m/min with three different feed rate. Chip formation and cutting forces

were compared for both numerical models. It was found that the cutting forces decreases at higher cutting

speeds than the low and medium cutting speeds. Three different types of cutting tools are used here with

the same geometry so that the result can be compared attractively. The results are then compared with

experimental references and more standard models: an ALE model developed with ABACUS (FEA

software). It was observed that the Polycrystalline Diamond tool produces less force as compared to other

tools. The results obtained through numerical investigations after incorporated changes in the coefficient

of friction showed a good agreement with the experimental results.


Distribution of Model Fluid Particles around Nanoparticle

Sumantra Das


National Institute of Technology, Raipur, Raipur-492010

Abstract: A systematic study on the radial distribution profiles of fluid particles around the nanoparticle is

performed using Monte Carlo Simulation to understand the distribution of constituent spherical particles,

which in turn help in describing their structures. The presence of nanoparticle surface is responsible for the

inhomogeneous behaviour of the fluids, as observed through the density profiles.

This simulation involves the generation of initial coordinates, the equilibration by moving the randomly

selected particles, and averaging. Periodic boundary conditions are employed during each procedure, which

depends on the respective symmetries. Block averaging procedure is adopted by dividing the box into equal-

sized bins for calculating the density profiles. Based on all the available density profiles, they are averaged

out to attain the normalized density profile of the concerned fluid system.

It was observed that the increase in bulk density of fluid particles or the increase in the diameter of the

nanoparticle, ceteris paribus in either case, increases the contact local density and the extent of damped


oscillation of local density of the fluid particle about the corresponding's bulk density. These observations

suggest that the surface adsorption effects imparted on the fluid particles are the effects of the entropy. In

real life, several situations where the adsorption of fluid particles around the repulsive surface are observed.

This computational model supports the entropy-based surface phenomena as observed in nanoparticles,

namely drug-delivery systems, catalytic systems, concentrators, property-enhancers etc. Hence, the

confluence of computational material science and nanoscience shall benefit human society.


A Comparative Analysis of Power Consumption in Conventional and

Differential – Less Drive for Electric Vehicle

Abhijeet Dhulekar1

, Pankaj Ardak2


P. R. Pote College of Engineering And Management Amravati, Amravati, India.

2 Department of Mechanical Engineering, Dr. Rajendra Gode Institude of Technology & Research,

Amravati, India.

Abstract: The general design of the methodology of the transmission system is usually used to give

efficient power to the driven wheel, such as usually used differential to differentiate speed and motion of

the wheel. In this paper; we analyze methods of motion control and power transmission variation for an

electric vehicle (EV) with two independently driven in-wheel motors and conventional differential used

EV. Compares the power transmission ratio of two different configurations drives energy conversion

differential and epicyclic gears train analysis. This investigation gives an orderly examination of

compendium an electrical vehicle is driven by transmissions system journals published and about different

losses through mechanical differential system transmission and how they affect on torque. These studies

present a comprehensive convergent study report of power Variation and torque transmission with

simulation result distinction in differential and differential-less EV’s by compendium studies and show

some comparative results. After a compendium study author finds few losses in differentials such as

Pocketing power losses, WPL, drag mishap, friction, and different slip in gears. We have mention different

factors also affect drive trains and illustrate the main reason to generate losses during transmission. In

addition, we have explained this through simulation.



Modelling and Analysis of two-wheeler Connecting rod with different

material using FEA

Ravi Kumar Verma1, Prof. A. K. Jain2 1 PG Student, Department of Mechanical Engineering, Jabalpur Engineering College 2 Professor in Department of Mechanical Engineering, Jabalpur Engineering college

Abstract: A connecting rod is one of the critical element of internal combustion engine consists of big end,

small end, and rod. In general, the connecting rods are made of carbon steel; nowadays, aluminium alloys

are the best alternative material for producing connecting rods. Aluminium alloys having less weight and

absorb high impact strength. The focus of this study analysis modal of two-wheeler connecting rod with

different material viz., A356, A356-5%SiC-10% Fly ash stir cum squeeze casting, AA7068 and

AA2014.Static structural mechanical properties, i.e., total deformation, equivalent elastic strain and von-

misses stress is calculated, and deformation and stiffness are calculated from analytical and ANSYS result.

So, the material having low deformation and higher stiffness are recommended for manufacturing of

connecting rod for automobile applications.


Modelling and Analysis of an EN19 crankshaft material in comparison with

Forged Steel crankshaft

Navneet Swaroop1, Prof. Ruchika Saini2 1 PG Student, Department of Mechanical Engineering, Jabalpur Engineering College, Jabalpur (M.P) 2 Professor in Department of Mechanical Engineering, Jabalpur Engineering college, Jabalpur (M.P)

Abstract: The purpose of the existing work is to develop and analyze a two-wheeler crankshaft 3D model

using Catia v5 and ANSYS. As the material of the crankshaft directly affects the reliability and the

longevity of the engine. I have chosen EN19 material and compared its performance with the Forged steel

crankshaft. Using FEA method I have applied boundary conditions, load and evaluated the stress analysis

on the surface of crankshaft. Obtained result as Total deformation, stresses and factor of safety are

compared with the forged steel.



Estimation of various second harmonic generation parameter in broad

wavelength range using ZnO nanorods

R K Biswal1, O K Swarupa1 , Rudrashish Panda2 , S K Das1 1 School of Physics,

Gangadhar Meher University, Amruta Vihar, Sambalpur ,Odisha,768004 2Laser Diagnostic Division,

Institute For Plasma Research, Gandhinagar, Gujarat, 382428,India.

Abstract: The Second Harmonic Generation (SHG) in ZnO nanorods takes place through non-phase

matching process. So unlike the commercial nonlinear optical (NLO) crystals, SHG in broad wavelength

range can be done through a single sample of ZnO nanorods. However so far, no effort has been done in

this regard. In present work, we have done detail theoretical simulation studies in broad wavelength range

of 800 nm to 4000 nm for SHG with ZnO nanorods. This wavelength range was choosen by considering

the transparency of ZnO crystal for fundamental and SHG radiation. From these theoretical studies we

found that, for reliable SHG in this wavelength range, the optimum length of ZnO nanorods should be 1200

nm. This is found out through the estimation of the coherence length for the SHG process. The Fresnel

transmission factors for fundamental and SHG radiation can drastically effect the SHG process. So the

variation of these parameters were studies within the aforementioned wavelength range. These transmission

factors were found to be in the range of 0.661- 0.674 and 1.66 - 1.75 for fundamental and SHG radiation

respectively. Refractive indices also control the behavior of SHG process. So detail investigation on it is

also done for the entire wavelength range of 800 nm-4000 nm by taking the Sellmier Equation . Effect of

these aforementioned parameters on efficiency of the second generation process is also studied.


Molecular Dynamics Simulation of Melting and Crystallization of Copper

and Nickel Nanoclusters

M.P.Samantaray, S.S.Sarangi

Veer Surendra Sai University of Technology, Burla, India,768018

Abstract: Metallic nanoclusters have received considerable attention due to their unique properties and

applications. In this study, the thermodynamical behaviour of copper(Cu) and nickel(Ni) nanoclusters has

been investigated via molecular dynamic simulations with the frame work of second nearest neighbour

modified embedded atom potential parameters during melting and crystallization . Both the copper and

nickel nanoclusters consisting of 2048 atoms were considered for this study. The melting and

crystallization behaviour was simulated with the hysteresis approach by subsequently heating and cooling

the nanoclusters over a wide range of temperature. The melting and crystallization temperatures of

nanoclusters were evaluated by various analyses such as, the variation of potential energy with temperature,

specific heat capacity and self diffusion coefficient during the phase transformation. The result shows that

the melting temperature of copper and nickel nanoclusters are 1360K±5K and 1710K±5K respectively


and the crystallization temperature of copper and nickel nanoclusters are 1090K±5K and 1390K±5K

respectively. Also it was found that the crystallization temperature is about hundred Kelvin lower than the

melting temperature for the same cluster, showing the hysteresis in the heating and cooling process. This

hysteresis of melting and crystallization corresponds to the change in structural level from liquid state to

the crystal state.


Dynamic characteristic of Graphene reinforced Axial Functionally Graded

Beam using Finite Element Analysis

A K Gantayat1, M K Sutar1, J R Mohanty1

1Mechanical Engineering Department,


Abstract: As graphene is going to take over the modern world due to its excellent properties and durability,

it is now a great interest for researchers to utilise it in a superior way, and making composite structure using

nanoparticle as a reinforcement is now became a new way of utilising the discovered nano-materials like

Graphene, in an altered way of design a functionally graded structure, it is necessary to analyse the dynamic

characteristic of the same to avoid failure and can be used for smart application in medical implants,

aerospace, defence, marine and sports industries, so as to get a desired property at different place of the

structure, which would cause light weight structure with reduced functional costs. In this paper a graphene

nano-particle reinforced functionally graded beam (FGM), with varying concentration in an Epoxy matrix,

along axial direction of the beam, has been analysed. The beam has been analysed to find out the

dimensionless Natural frequency for its first four mode of vibration using finite element software package

ANSYS, and the results have been compared with previously modelled Carbon Nanotubes (CNT)

reinforced axially functionally graded beam results. The comparison indicates satisfactory results with

superior parameters which can be implemented for further analysis.


Finite element simulation of liquid nitrogen temperature rolling of marine

grade aluminium alloy 5754

Arjun Ramanchenath Jagadish1, Amram Xavier Pereira1, Alisha Vijay Thorat1, Pankaj Kumar1


National Institute of Technology Goa

Abstract: Now days, numerical approaches are becoming an efficient practical tool for the analysis of

elastoplastic behavior of various engineering materials. Present study elaborates about the numerical

investigation of liquid nitrogen temperature (LNT) plate rolling operation of marine grade aluminium alloy

5754 (AA 5754) by finite element method. To serve this purpose, commercially available ANSYS software

package has been utilized to perform LNT-rolling simulation. In literature, it is well documented that LNT-


rolling immensely increases mechanical strength through grain refinement technique. During rolling at

liquid nitrogen temperature, the dynamic recovery process is inhibited which leads in accumulation of high

rate of dislocation defects. Consequently, with due rolling these accumulated dislocations attributed

towards formation of ultrafine grain (UFG) structure. The aim of this work is to formulate an efficient

method to numerically investigate the deformation characteristics of AA 5754 during LNT-rolling.

Geometrical and experimental parameters like roller diameters, dimensions of flat plate, roller speed,

friction coefficient etc. are incorporated in the preprocessor module of ANSYS software. An optimized

meshed domain is selected for simulation of 40% thickness reduction of AA 5754. The temperature effect

and corresponding stress distribution in the flat plate of AA 5754 is well captured and comparative analysis

with the experimental practices has been successfully carried out. Numerical results obtained in the form

of uniform thickness reduction, elastoplastic stress and strain contour plots, pressure force exerted by roller

etc. are in good agreement with the experimental rolling operation.


Numerical modeling for the temperature profile in the Gaussian-shaped

spray deposited Al-alloy using the finite difference method

Sandeep Kumar 1, S.K. Nath 2, and Devendra Puri 3 1,2,3Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee

Uttarakhand– 247667 (India)

Abstract: In the present paper, numerical modeling has been done for the temperature profile in the

Gaussian-shaped spray deposited Al-alloy using the finite difference method (FDM). The spray deposition

of Al-alloys was carried out at a gas pressure, and the nozzle to substrate distance was 1000 KPa and 400

mm, respectively. Temperature profiles, i.e., the temperature at various points in the Gaussian-shaped

product, have been formulated by a governing differential equation of heat conduction and convection.

Created 12 nodes in the Gaussian-shaped spray deposited Al-alloy and applied the differential equations of

heat on each node by considering boundary conditions. All derived differential equations of heat were

solved with the help of MATLAB and obtained the temperature at various points with respect to time and

position. The temperature at the central region is more initially because of the larger value of heat transfer

co-efficient. The temperature at the right and left faces are lower than the bottom face of Gaussian-shaped

spray deposited Al-alloy. Also, the result of numerical modeling was co-related with microstructural

property, hardness, and porosity of spray deposited Al-alloys. The advantage of this study is to predict the

mechanical properties in a quick manner without doing destructive testing.



Buckling and vibration analysis of the sandwich beam having nanocomposite

based viscoelastic core layers

1D. P. Sahu, 2J.K. Prusty, 3S.C. Mohanty

1,2Research Scholar, Department of Mechanical Engineering,

National Institute of Technology, Rourkela, India (769008) 3Professor, Department of Mechanical Engineering,

National Institute of Technology Rourkela, Odisha (769008)

Abstract: The nanocomposites are an exciting candidate to improve the damping capacity of the

viscoelastic core of the sandwich structures without losing the stiffness; because of these properties, they

can be used in vibration and weight-sensitive aircraft structures. The purpose of the present study is to

explore the new hybrid CNTs based viscoelastic sandwich beam for better damping and stiffness. Any

sandwich structure with the viscoelastic core incorporated hybrid nanocomposites proved the better

damping responsible for the longer life of the structural element. In this analysis, four different kinds of

core layers having different volume contents of CNTs with and without surfactants, such as Baseline

(Carbon fibre and stoichiometric mixture of diglycidyl ether of bisphenol F epoxide (EPON 862)),

YN2.5%, YN10%TX2 and YN10%TX4 have been used in the sandwich beam. The isotropic elastic faces

and viscoelastic core of the sandwich beam are modelled using the equivalent single theory (ESL).

Hamilton's principle, coupled with finite element analysis (FEA), lead the governing equation. The modal

frequencies, loss factors and critical buckling loads have been investigated through self-developed

MATLAB code. The effect of core thickness and constraining to base layer thickness ratio has been studied

on the sandwich beam's modal frequencies, loss factor, and critical buckling load. The increase in the CNTs

volume contents and surfactant improves storage modulus and loss factor, leading to higher modal

frequencies and stability of the structures.


Automatic Alcoholic Beverage Brewing Machine

B Sateesh1, NV Swamy Naidu2, S Radhika3, D A Dileep1

1Vignan’s Institute of Information Technology, Visakhapatnam

2NIT Raipur, Raipur

3RVR & JC College of Engineering, Guntur

Abstract: Introducing the Automated Alcoholic Beverage Brewing Machine designed for home brewing.

Objective of the paper is to create a machine that replaces almost all manual aspects of home-brewing with

automated solutions. There are currently no products on the market that transform the home-brewing

process into a simple, time saving and automated procedure. These all aspects are achieved by Automatic

Alcoholic Beverage Brewing Machine. After placement of the ingredients in their appropriate containers,

the machine autonomously runs through all brewing steps. By the time the user returns several hours later,

the beverage will already be fermenting in a vessel that can easily be detached and stored away safely for


the remaining two weeks of fermentation. A major design priority has been devoted to ensuring sanitary

requirements and simplifying the cleaning process as much as possible. These processes are performed by

a range of processer controlled subsystems, including a Hot case box, a Grain steeper, a Hops& Spice

dispenser, a Mixer, an integrated liquid cooling system, a Fermenting vessel and detachable Worting vessel.

The final product will be a tabletop appliance. It will be capable of preparing finished wort, which is just a

fermentation step away from the final product.


Evaluation of tensile strength for 3D-printed PLA specimens

Harsh Chokshi1, K S Patel1, D B Shah1, K M Patel1 1Mechanical Engineering Department,

Institute of Technology, Nirma University, S-G Highway, Ahmedabad 382481, India.

Abstract: Additive manufacturing (AM) technology plays a vital role in manufacturing components for the

validation of designs. However, the strength of end-user functional components using fused deposition

modeling (FDM) is yet a space of flow research. Polylactic acid (PLA) is a bio-degradable material

regularly utilized in the FDM-based 3D printing process. This research paper focuses on process parameters

such as layer thickness, infill geometry, and the number of perimeter on tensile strength of PLA samples.

The finite element (FE) simulation has been performed on 3D printed parts to predict von-Misses stress and

tensile strength. The simulation process involves the preparation of parts in Solidworks and then subjected

to tensile loads in ANSYS to calculate desired results. Three different simulation approaches have been

employed and compared to obtain accurate results. The simulated results has also been compared with

experimental tensile strength value for 3D printed parts fabricated using PLA material in Pursa MK3S FDM

printer, exposed to tensile testing in the universal testing machine. The results revealed that the percentage

variation of tensile strength for simulation and experimental results has been found in the range of almost

20%. The work proposed to simulate their behavior under tensile loads for future examination on the

coupled effects of processing parameters.


Angular birefringence phase matching behaviour of Lithium Triborate

(LBO) crystal for second-harmonic generation in broad wavelength range

O K Swarupa, R K Biswal, S K Das

School of Physics,

Gangadhar Meher University, Amruta Vihar,Sambalpur ,Odisha,768004

Abstract: Second Harmonic Generation (SHG) is nonlinear optical process in which the frequency of the

incident radiation get doubled. There are various types of applications of SHG such as ultra-short pulse

measurement, high resolution optical microscopy, characterization of the structure of 2D materials and its

physical properties like the thickness of interlayer stacking, stacking angle between different layers, the

grain boundary etc. It has also used to determine the structure of Langmuir-Blodgett films of low symmetry.


For SHG, various commercial nonlinear optical (NLO) crystals are generally used. Lithium Triborate

(LBO) is one of the best NLO material among them due to its wide transparency range(160-2600nm), high

damage threshold (19 GW/cm2 @1064nm,1ns) and high Second order non-linear coefficient . It has also

the ability to establish birefringence phase matching condition for efficient SHG for different wavelength.

The crystal can be used for generation for SHG in broad wavelength range through angular phase matching

method. For this, in this work detail investigation has been made to find out the optimum wavelength range

that can be used for efficient SHG. This has been done by finding the variation of phase matching angle,

second order nonlinearity etc. with respect to wavelength using the SNLO software. Both type 1 and type

2 phase matching has been considered for various plane of the crystal.


Performance analysis of a 5-stroke IC Engine by changing different fuels

Sri Ram Deepak Akella1, Sai Srihari Challa1, V.V.N Sarath2

1Student, Department of Mechanical Engineering,

Pragati Engineering College, Surampalem, India.

2Assistant Professor, Department of Mechanical Engineering,

Pragati Engineering College,

Surampalem, India.

Abstract:An Internal Combustion Engine (ICE) is a heat engine in which the combustion of fuel happens

with an oxidizer (usually air) in a combustion chamber that's a necessary portion of the working liquid

stream circuit. In an IC engine, the extension of the high-temperature and high-pressure gasses created by

combustion applies a coordinate drive to a few components of the engine. In this paper design modification

and performance analysis of the 5-Stroke IC-engine were made based on the previous paper, the design of

the IC-engines is considered within a perspective of the required feature for the 5-Stroke engine. We had

performed the simulation on it by replacing the primary fuel (with a constant fuel/air ratio of 1/16) called

petrol with 5 different kinds of other fuels such as 1. hydrogen, 2. butanol fuel, 3. methanol fuel, 4. ethanol

(AKA “ethyl alcohol”), 5. acetylene. Then we observed the performance of the engine with each of these

fuels and also compared it with each other not only in terms of performance and efficiency but we had also

been observed the harmful chemical composition which may release into the atmosphere and also

considered the availability of fuel in nature. While the design of the engine and its simulation is done on

SolidWorks and Ansys software with a steady-state thermal workbench and the flow simulation was in

SolidWorks fluid simulation. At the end of the calculation and simulation which we had performed under

the assumed conditions finally, it states that methanol has the required properties among all under the

consideration of different criteria.



Influence of defect densities on perovskite (CH3NH3PbI3) solar cells: Correlation of

experiment and simulation

Ipsita Mohanty1, Sutanu Mangal1, and Udai P. Singh2

1School of Applied Sciences,

Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar, 751024, India 2School of Electronics Engineering,

Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar, 751024, India

Abstract: In this work, a device model Al/PEDOT:PSS/CH3NH3PbI3/PCBM/FTO has been revisited in

order to enhance the efficiency of the perovskite solar cell. The device has been simulated using SCAPS-

1D software, and after optimization, the efficiency increases significantly from previously reported, 13.1

% to 17.23 %. A brief study on the effect of defect density of the absorber layer and effect of the interface

defect density of PEDOT:PSS/CH3NH3PbI3 and CH3NH3PbI3/PCBM on the performance of the device has

been investigated. In order to minimize the use of hole transport layer, a new device model

Al/CH3NH3PbI3/PCBM/FTO has also been proposed and it yields an efficiency of about 15.23 %. The

device without a hole transport layer is the most convenient one as it has a simple structure. The current-

voltage output characteristics of the two simulated models are compared with the previously reported

experimental results.


Effect of acceptor density, thickness and temperature on device performance for tin-

based perovskite solar cell

Arpita Sahoo, Ipsita Mohanty, Sutanu Mangal

School of Applied Sciences,

Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar,751024, India

Abstract: In this work, a Perovskite Solar Cell is simulated in SCAPS-1D software using

Methylammonium tin iodide (CH3NH3SnI3) as the absorber layer, Titanium dioxide (TiO2) as the electron

transport layer and Spiro-OMeTAD as the hole transport layer. In order to obtain an optimized and

enhanced efficiency along with a high fill factor, a detailed study of the effect of several parameters like

acceptor density and thickness of the absorber layer, and operating temperature of the solar cell has been

taken into account for thorough analysis. The optimized device structure Spiro-

OMeTAD/CH3NH3SnI3/TiO2/FTO achieves maximum output result at open circuit voltage (Voc) 0.89 V,

short circuit current density (Jsc) 35.32 mA/cm2, fill factor (FF) 77.45% and efficiency (ɳ) 24.36%. The

results were compared with the previously reported experimental data.



Simulation 0f Abrasive Water Jet Drilling Process Using the FEA

Coupled SPH Models

Balaji Vasudevan1, Yuvaraj Natarajan1*, Ramapuram Pavan Kumar2, Kasturi Umesh

Chandra2, Dipan Sikder2

1,2 Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi,

Chennai, India

Abstract: Abrasive Waterjet (AWJ) machining is one of the most preferred non-conventional machining

processes in manufacturing because of its ability to machine a huge variety of materials including ceramics

and hard metals like superalloys without developing thermal stresses while machining. However, the

accuracy of the machined materials is difficult to predict due to the lack of analysis in the machining process

parameters. In addition, the machining cost is restricted to conduct real time experiments with different

combinations. Therefore, in this work, Finite Element Analysis (FEA) coupled Smooth Particle

Hydrodynamics (SPH) method is used to examine the effect of change in jet velocity and stand-off distance

on erosion depth, hole diameter and shear stress in the AWJ machining of nickel-based superalloy while

piercing small holes. In this work, the abrasives and waterjet features are modelled by using the SPH method

and the target material is modelled by using the FEA method. A contact called Eroding nodes to surface is

set between the target material and SPH particles to simulate the Abrasive waterjet machining and a

software package called Ls-Dyna is used to perform the whole simulation. The results of this study bring

the suitable parameter settings for the production of quality holes in nickel based superalloy by using the

AWJ with piercing mode.


Development of Dynamic Materials Model Processing Maps for modified 9 Cr-1Mo

steel and Ti-6Al-4V ultra-porous materials using the Flow Curves predicted through

Neural Networks and Garafalo Equation

D Venkatesan1 , R Chandramouli2 , S Venugopal3 1,2School of Mechanical engineering,

SASTRA Deemed to be University 3National Institute of Technology Nagaland, Dimapur, Nagaland.

Abstract: Economic manufacturing of components with minimum rejections can be achieved when the

process is carried out in the most optimised way. For components whose processing route involves broad

processing spectrum, the deformation behaviour of materials is to be meticulously predicted for defect free

manufacturing. Dynamic Materials Model (DMM) Processing Maps are finding applications for the design

and control of hot working processesfor eliminating defects in the components. The development of DMM

Maps requires lots of experimental efforts for obtaining the flow curves of materials. In order to minimise

the experimental efforts, perdition of flow curves through modelling techniques are often preferred for

accuracy and time and cost reduction. In this work, the high temperature constitutive flow behaviour (Flow


Curves and DMM-Processing Maps) of modified 9Cr 1Mo steel is predicted using Garafalo equation

(Analytical Model) and neural network using R (Artificial Intelligence Technique). The predicted results

found matching well with the experimental results obtained from hot compression tests. The predicted flow

stress values obtained from a 5-5-5 three-layered neural network with 10 fold cross validation show good

correlation with the experimental values. The constitutive model developed using the Garafalo equation

give good prediction for the flow stress at high temperatures with minimum error. Further, the predication

of flow curves for Ti-6Al-4V ultra-porous materials using Garafalo equation is also examined.


Optimization of hot rolling parameters of CRNO steel with the aid of hot

compression test and deformation map

S K Thakur1, Alok Kumar Das2, S Rath1, P Pathak1, B K Jha3

1RDCIS,SAIL, Ranchi,

2IIT(ISM), Dhanbad,

3NIIFT, Ranchi

Abstract: Cold rolled non-oriented (CRNO) electrical steels finds a wide variety of applications in the core

of electrical machines due to low core loss and high magnetic permeability. Rourkela Steel Plant (RSP) is

one of the prominent producers of CRNO steels in the country. Stringent market condition not only require

CRNO steel with superior magnetic properties but also demand excellent surface condition. At RSP, CRNO

steel is cold rolled to 0.5 mm in reversing mill. High hot rolled input thickness (>2.6 mm) increases the

number of passes during cold rolling and adversely affecting the mill productivity. It also results in surface

defects such as buckling and coil break. Flow stress of this steel varies differently compared to conventional

steel rolled. Thus, it become difficult to optimize reduction schedule and hence safe hot rolling practice is

adopted to restrict roll force within permissible limit resulting in higher thickness. Hot compression test

was carried out in Gleeble-3500 to evaluate the flow stress behaviour of this steel and deformation map

was developed to optimize the hot rolling window. The input from hot compression test and deformation

map was used to develop a mill set up model to accurately predict the roll force and optimize the reduction

schedule of CRNO steel in finishing stands of HSM. The final thickness of hot rolled coils during industrial

trials with optimized reduction schedule found to be in the range of 2.3-2.5mm compared to 2.6- 2.9 mm

during conventional rolling. These coils were further cold rolled and finished in 4-5 passes compared to 6-

7 passes with conventional rolling. Reduction in number of passes has resulted in increased productivity

during cold rolling as well as improved surface finish.



Artificial Intelligence Modelling of Al 7075 based Metal Matrix Composites

Abhilas Swain1, Radha Kanta Sarangi1, Satya Prakash Kar 1, P Chandrasekhar1

1School of Mechanical Engineering,

Kalinga Institute of Industrial Technology, Bhubaneswar

Abstract: The present article is focused on the Artificial intelligence modeling for prediction of the

properties of the Metal matrix composites formed out of Aluminum Al 7075 enforced with submicron sized

TiB2 particles implementing semi-solid processing. For achieving uniform distribution semi-solid stirring

is carried out and squeeze casting procedure is followed. The casting process is also buttressed by ultrasonic

vibration to prevent coagulation of the particles and improving the wettability of the particles. The

experimental results are obtained from literature and the Adaptive Neuro Fuzzy Inference System (ANFIS)

is applied to predict the different mechanical properties of the metal matrix composites. The predicted

performances are within ±5% of the experimental results and are also in good agreement with the output

from the other models proposed. The mechanical properties considered for the modelling are the micro-

hardness, ultimate compressive strength and the Tensile Yield Strength.


FREE VIBRATION ANALYSIS OF SANDWICH PLATE WITH VISCOELASTIC

CORE HAVING CENTRAL CUT-OUT

Jagesh Kumar Prusty1, Dhaneshwar Prasad Sahu1, Sukesh Chandra Mohanty1 1Department of Mechanical Engineering,

National Institute of Technology

Rourkela, Orissa, 769008

Abstract: The plates and shells are the fundamental structures of various applications such as Aerospace,

Civil and Mechanical fields. These are often subjected to multiple types of loading under

different operating conditions, which affect their functionality. Vibration is one of the prime causes of

almost all types of structural instability. Therefore, it is essential to keep the vibration level of these

structures within permissible limits. Resonance will occur if the component vibrates with frequency in

coherence with the natural frequency, and structural failure may emerge. Sandwich structures are highly

recognized in different fields of engineering applications. A Sandwich structure consists of a thick flexible

core with two thin face sheets that are considered a particular type of laminated structure. With the recent

development in the plate theories, the sandwich plates have gained more attention. In many applications,

cut-outs are inescapable in structural applications. The presence of cut-outs will result in changes of natural

frequencies and changes in the mode shapes of the panels, thus changing the ultimate dynamic response of

structural properties. This article mainly focuses on the dynamic response of a sandwich plate with a

viscoelastic core having a circular cut-out at the centre. Free vibration analysis that includes modal

frequencies, mode shapes, damping characteristics has been found from the simulation and experimental

methods. For a rectangular viscoelastic sandwich plate to determine the vibrational parameters, the


experimental investigation is performed using the Impact Hammer Test method and simulation is done

using ABAQUS software. Later the simulation results are validated with experimental results, and the effect

of the central cut-out is investigated.

(Abstract ID: ICPCM21/H/01)

Microwave processing of Carbon doped Nickel-Cobalt composites for high-

performance supercapacitors

Niraj Kumar1, Bibhuti Bhusan Sahoo2, Naresh Kumar Sahoo3, Prasanta Kumar Sahoo2 1Sustainable Energy Laboratory,

Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology

(DIAT), Pune, Maharashtra 411025, India 2Department of Mechanical Engineering,

Siksha ‘O’ Anusandhan, Deemed to be University, Bhubaneswar, Odisha 751030, India 3Department of Chemistry, Environmental Science and Technology Program,

Siksha ‘O’ Anusandhan, Deemed to be University, Bhubaneswar, Odisha 751030, India

Abstract: Developing renewable and sustainable energy sources like supercapacitors has become more

important in recent years as conventional energy resources are depleting and pollution is becoming more

widespread. It has high power performance, high cyclic efficiency, and is environmentally friendly. A facile

and rapid method of microwave synthesis was used to make Co/Ni-carbon black (CB) nanocomposites. A

number of sophisticated techniques confirm the formation and the effects of carbon nanoparticles

incorporated into Co/Ni-CB composites. Carbon engrafted Co/Ni composite demonstrates excellent

morphology, more significant area, higher conductive region, thus improving electrode/electrolyte

accessibility to enhance electrochemical kinetics. The interaction and combination of CB with Co/Ni

composite shows excellent capacitive behavior, assessed by galvanostatic discharge method, cyclic voltage

voltammetry, and electrochemical impedance spectroscopy. As synthesized Co/Ni-CB electrode material

has a maximum specific capacitance of 748 Fg-1 at scan rates of 5 mVs-1 and was found to have excellent

cycle stability (92.8%) over 5000 cycles. Solid state supercapacitors fabricated from developed electrodes

are highly effective for brightening LEDs. The present work suggests that low-cost electrodes can be used

in a wide range of future energy storage systems as a potential hybrid material.


Investigational Study of Ultimate Tensile Strength into Welded Joint through

Taguchi Technique: Evaluation and Optimization

Nitin Kumar Sahu*1, Mukesh Kumar Singh2, Atul Kumar Sahu3, Anoop Kumar Sahu4

1,2,3Department of Industrial and Production Engineering,

Guru Ghasidas (Central) Vishwavidyalaya, Bilaspur - 495009, Chhattisgarh, India,


Guru Ghasidas (Central) Vishwavidyalaya, Bilaspur - 495009, Chhattisgarh, India


Abstract: Today, it is required to deploy proficient provisions and tactics in production for creating

efficient and reliable products by the production machinery. It is probed that effectual analysis considering

system parameters and variables underlying statistical approach can entail productivity. The same can assist

in improving the quality of produce products and can be achieved by deploying Taguchi practices. Taguchi

technique optimizes process parameters setting and determines the effectual combination of process

variables for gratifying enhanced productivity and other outputs. In present study, Taguchi technique is

applied in Metal Inert Gas (MIG) welding process for assuming the paramount setting amongst three

process parameters i.e. welding current, voltage and plate thickness. The MIG welding operation is

performed in mild steel plate specimens and study is conducted with the objective to determine maximum

ultimate strength of the welded joint. Experiments are conducted considering Taguchi L9 orthogonal array

to minimize the conducted experiments. The study tactically utilized conceptual domain of orthogonal

array, signal-to-noise ratio and determined values pertaining to ANOVA (analysis of variance) to observe

the performance picture of welding process. The study critically discloses the segmental procedural steps

required for optimizing process parameters via Taguchi technique in welding process.


Study of semiconducting to metallic transition in calcium-doped Sr2TiCoO6 double

perovskites thermoelectric materials

Sudha Saini1,2*, Kantesh Balani2, Tanmoy Maiti1* 1Plasmonic and Perovskites Laboratory, Department of Materials Science and Engineering

2Biomaterials Laboratory, Department of Materials Science and Engineering,

Indian Institute of Technology Kanpur, UP 208016, India

Abstract: The present work illustrates the structural and thermoelectrical properties of Sr2TiCoO6 (STC)

double perovskites. Environment friendly rare-earth free CaxSr2-xTiCoO6 (0.0 ≤ x ≤ 0.3) (CSTC) ceramics

were synthesized using solid state synthesis route. CSTC ceramics were found to possess a cubic crystal

structure with 𝑃𝑚3̅𝑚 space group, as confirmed by Rietveld refinement of XRD data. The morphological

study was carried out by SEM and energy dispersive x-ray spectroscopy. The temperature dependent

electrical conductivity and thermopower of these oxides showed the semiconductor to metal transition at

around 700K. X-ray photoelectron spectroscopy (XPS) confirmed the presence of multiples oxidation states

of Co and Ti, creating defect sites in these oxides. CSTC ceramic samples exhibited a positive Seebeck

coefficient implying p-type behavior. The charge transport mechanism of all the CSTC samples was found

to be governed by a small polaron hopping model.



Importance of battery materials in novel batteries

Pratik V. Wangikar, Adhidesh S. Kumawat*

Chemical Engineering Department, NIT Rourkela, Odisha, India

Abstract: Energy storage demand is increasing day by day. Batteries provide the efficient way to store the

electrical energy, in the process of making this energy storage device huge carbon footprints are left. Carbon

dioxide is the major pollutant present in atmosphere which is responsible for issues such as global warming.

It becomes the responsibility of every researcher to guide their research in the direction of addressing

environmental issues. The battery researchers have been addressing the energy and environmental related

issues by developing novel battery materials to attain higher efficiencies as well as sustainability. In the

inception stage, novel battery materials include challenges as well as opportunities. Researchers have

developed a battery system that uses CO2 as a energy storage material. Li-CO2 is an example of the battery

which utilizes CO2. This type of battery has an advantage such as reduction in the weight of battery which

will be useful for futuristic technologies such as electric planes. However, the battery is not efficient till

now due to challenges such as increasing its recharge cycle and energy efficiency. A few other materials

have also been utilized including ceramic electrolyte in pure CO2 atmosphere. We aim to develop the

materials for battery having low environmental impact, less carbon footprints, higher energy efficiency and

should be cost economical.


Enhancement of performance of activated carbon based battery using TiO2

nanoparticle

O K Swarupa1, J Pani2, V Nayak3, N Dash4, S K Das1, * 1School of Physics,

Gangadhar Meher University, Amruta Vihar,Sambalpur-768004,Odisha 2Department of Physics,

National Institute of Technology, Warangal-506004,Telengana 3Rajdhani College, Bhubaneswar-751003,Odisha

4Department of Physics,College of Basic Science,OUAT,Bhubaneswar-751003,Odisha

Abstract: Activated Carbon (AC) is a very promising material because of its properties like high porous

structure and high surface area. It can be produced from a number of cost effective materials like coconut

shells, groundnut shells, wood, sugarcane bagasse etc. AC has been found to be very useful for battery

application. In this work investigation has been done on the effect of addition of TiO2 nanoparticles on the

performance of the battery grown from AC. The teak wood charcoal was taken as the source material. It

was grinded and a slurry prepared from it by taking NaCl solution. It was heated for 90 min at 2500C for

activation. Three set of samples were prepared with addition of TiO2 nanoparticles in the proportion of

0%, 10% and 20% with this AC. Three batteries were prepared using these three samples. In the study, it

was found that without the addition of TiO2 nanoparticles ,the battery can show emf of 0.4V whereas with


the addition of 20% TiO2 nanoparticles, the emf can rise to 1.157 V. So about 289% enhancement of the

emf was found with the addition of TiO2. Discussion is given on the probable cause of this enhancement

and its significance.


Investigation of photovoltaic response in multiferroic KBiFe2O5 thick film

S Subudhi1, M Mandal1, I Alam1, B Subramanyam1, S Patra1, P Mahanandia1 1Department of Physics & Astronomy,

National Institute of Technology Rourkela, India-769008

Abstract: Brownmillerite structured multiferroic KBiFe2O5 (KBFO) is an upcoming promising

photoactive material for photovoltaic applications due to its intrinsic polarization and narrow bandgap

value. Herein, we reported the preparation, optical and electrical properties of polycrystalline KBiFe2O5

compound. The phase confirmation of orthorhombic KBFO nanoparticles prepared by a simple solgel

technique was investigated by X-ray diffraction (XRD) pattern. The band gap of KBFO was investigated

by UV-Vis spectroscopy and found to be ∼1.65 eV which extends visible to infrared region compared to

conventional perovskite-structured multiferroics. For photovoltaic measurement KBFO thick film was

prepared from KBFO powder through spin coating technique. The surface morphology as well as thickness

of KBFO sample was identified by scanning electron microscopy (SEM). The optically active KBFO shows

switchable photo-response under visible light illumination. The evidence of photo responses in KBFO was

explained on the basis of Current-Voltage characteristics. In summary, the multiferroicity in KBFO could

be regarded as a potential candidate for the ferroelectric photovoltaic applications.

Keywords: Brownmillerite; Optical; Electrical


Investigation on combustion parameters of a producer gas-biodiesel-diethyl

ether operated dual fuel engine

P K Dash1, S P Jena2, H C Das3


KMBB College of Engineering and Technology,

Khurda, 752056


SOA deemed to be University, Bhubaneswar 751030


NIT Meghalaya, Shillong 793003

Abstract: In the current experimentation, combustion assessment was performed in a 4-stroke dual fuel

compression ignition engine using blend of karanja biodiesel (10% by volume with diesel) with variation

in loading conditions with induction of producer gas (PG) in the dual fuel operation. Diethyl ether (DEE)


was used as cetane enhancer to improve the combustion trend of dual fuel operation. The combustion

characteristics of dual fuel run indicates that peak value of cylinder pressure and net heat release rate moved

slightly away from the top dead center (TDC). Highest peak cylinder pressure was recorded for Diesel-

5DEE-PG (6.68 MPa) at 15° after TDC compared to 6.11 MPa at 9° after TDC for base result (diesel alone

run). Highest peak value of net heat release rate was observed for diesel alone run 53.23 J deg-1 at 1° after

TDC followed by Diesel + PG (50.26 J deg-1 at 8° after TDC), Diesel + 5DEE + PG (49.75 J deg-1 at 6°

after TDC), B10 + 5DEE + PG (49.36 J deg-1 at 8° after TDC), B10 + PG (48.03 J deg-1 at 8° after TDC).

The slope of left limb of mean combustion temperature slightly fallen during dual fuel operation indicating

the delayed combustion process with PG induction. Inclusion of DEE as cetane enhancer with pilot fuels

have improved combustion trend during dual fuel run.


Recent advances of the 2D transition metal dichalcogenides based

electrochemical biosensors

Sthitiprajna Mishra1, Niraj Kumar2, Bibhuti Bhusan Sahoo3, Prasanta Kumar Sahoo3 1Department of Chemistry, Environmental Science and Technology Program,

Siksha ‘O’ Anusandhan, Deemed to be University, Bhubaneswar, Odisha 751030, India

2Sustainable Energy Laboratory, Department of Metallurgical and Materials Engineering,

Defence Institute of Advanced Technology (DIAT), Pune, Maharashtra 411025, India 3Department of Mechanical Engineering,

Siksha ‘O’ Anusandhan, Deemed to be University,

Bhubaneswar, Odisha 751030, India

Abstract: Two-dimensional transition metal dichalcogenides attract significant attention due to their

intriguing physical, chemical, electronic, and optical properties. Success in development of methods for

large-scale production of 2D TMD nanosheets and their composites has given great potential for various

novel applications. Biosensors are powerful analytical devices employed to monitor biological molecules

and biochemical processes, extending from clinical diagnosis to disease therapy. There is a huge demands

of new nanomaterials for the development of various electrochemical biosensors with high sensitivity and

selectivity. In this review, we summarize the recent progress in 2D TMD nanomaterial-based biosensors

for the selective and sensitive detection of various kinds of targets such as H2O2, proteins, C6H12O6, DA, &

DNA. Moreover, the effect of the elemental composition and structure of 2D TMDs on the performance of

electrochemical biosensors as well as the different sensing strategies and signal-transducing mechanisms

for sensing devices based on 2D TMDs are also summarized and discussed. Besides these, the usage of 2D

TMDs in the detection of heavy metal ions such as Mercury, Lead, Cadmium, Copper, Chromium and

Arsenic are also briefly described here. Finally, the current challenges and future perspectives related to

development and design of 2D TMD based electrochemical biosensors are also proposed.



Wetting Behavior of Silicon Nanowires Array Fabricated by Metal-assisted

Chemical Etching

Rama Chandra Muduli1, Mihir Kumar Sahoo2and Paresh Kale3 1,2,3Department of Electrical Engineering,

NIT Rourkela, 769008, Odisha, India 1,3DST-IIT Bombay Energy Storage Platform on Hydrogen,

IIT Bombay, 410076, Maharashtra, India

Abstract: A silicon (Si) substrate exhibits a hydrophobic surface (contact angle, CA ~ 90.2⁰), and upon

anodization, the porous Si (PSi) also possesses a hydrophobic surface (CA ~ 142.4⁰). Silicon nanowires

(SiNWs) array, also known as black silicon, exhibits lotus effect, i.e., water droplet roleover the surface

without penetrating inside the surface. An array of SiNWs, fabricated by metalassisted chemical etching

(MACE) of Si, act as a superhydrophobic surface (i.e., CA > 150⁰) without using any functionalization

material. The MACE fabricates etched-Si, using PSi substrate that also possesses a superhydrophobic

surface. Trapped air, present among the conical tips of the densely formed SiNWs array, reduces the solid-

liquid contact area and improves the de-wetting behavior. The trapped air increases on increasing the length

of SiNWs, which further enhances the de-wetting behavior. The wetting behavior changes to

hydrophobic/hydrophilic when kept for a longer duration due to the aging effect. Oxidation causes aging

and changes the conical/dendrite structure of the SiNWs/etched-Si surface. The Fourier transform infrared

spectroscopy confirms the hydrogen passivation on the surfaces of SiNWs because of HF etching and highly

oxidized surfaces due to the effect of aging.

(Abstract ID: ICPCM21/I/01)

Green synthesis of silver nanoparticles using Citrus X sinensis (Orange) fruit extract

and assessments of their catalytic reduction

Jyoti Yadav1, Pratima Chauhan

2

1Centre of Environmental Science, Department of Botany, Science Faculty,

University Of Allahabad, Prayagraj, 211002, Uttar Pradesh, India. 2Department of Physics, Science Faculty,

University Of Allahabad, Prayagraj, 211002, Uttar Pradesh, India.

Abstract: Wastewater discharges is one of the major environmental concern. Removal of pollutant from

wastewater is one of the important section in research area. Nanotechnology plays greater role in degrading

such type of pollutant. Green synthesis of silver nanoparticles has currently been gaining wide application

in the field of environmental degradation and it’s also considered to be ecofriendly approach in research

area. Silver nanoparticles afford low cost, less toxic, greater chemical stability and so forth etc. In the

present work we synthesized silver nanoparticle via green approach. Citrus X sinensis fruit has been

reported to have antioxidant and various therapeutic applications. Therefore, silver nanoparticles were


synthesized from silver nitrate solution using Citrus X sinensis (Orange) fruit extract. Citrus X sinensis

fruit extract were used as a biological capping and reducing agent. The formation and characterization of

Silver nanoparticles were confirmed by UV-Vis spectroscopy, X-ray diffraction analysis (XRD), Scanning

Electron Microscopy (SEM) and Energy-dispersive X-ray (EDX) methods. Green synthesized Silver

nanoparticles was confirmed by formation of dark brown color and monitored by UV-Vis spectra. XRD

confirms crystalline structure and particle size of silver nanoparticles. SEM identify the size and shape of

silver nanoparticles. The EDX spectrum of the solution containing silver nanoparticles confirmed the

presence of an elemental silver signal. Application of silver nanoparticles for catalytic activities have been

evaluated. The catalytic effectiveness of the prepared green catalyst, AgNPs, was investigated in catalytic

degradation of Methylene Blue (MB) dye.


Study of corrosion behaviour of Aluminium alloys in borate buffer and 3.5 wt%

NaCl solutions

Samarajeet Das1, Sanjeev Das2 and Archana Mallik 1* 1 Electrometallurgy and Corrosion Laboratory, Dept. of Metallurgical and Materials Engg.,

NIT Roukela, Odisha, India 2 Advanced Metal Casting Laboratory, Dept. of Metallurgical and Materials Engg.,

NIT Raipur, Chhatisgarh, India

Abstract: Aluminium and its alloys have a huge impact on human lives by their sheer volume of

applications due to its excellent structural and corrosive properties. As metallurgical engineers, we need to

make sure their usage is least affected by the corroding effect that the environment has on them. This will

eventually lead to further broadening of the limits of their application sphere. This work focuses on the

corrosion study of aluminium alloys with variations in their aluminium concentrations. Procured as-cast

samples of aluminium alloy have been metallurgically prepared and consequently tested for their corrosion

properties using the potentiodynamic polarisation and the EIS tests in a borate buffer solution. With

appropriate modelling and Tafel fitting, the corrosion rate has been obtained for the various alloys. An

equivalent Randles circuit with varying circuit parameters has been suggested from the experimental results

obtained. The samples composition has been confirmed by EDS and the phases formed/present have been

revealed by XRD. The microstructural study of the samples and the hardness variation among the samples

have also been done in an attempt to co-relate with the corrosion properties observed.



Synthesis of Environment friendly waterborne acrylic coatings

Sweta Shukla1, Dhirendra Kumar Sharma

2

1,2 Department of Applied Sciences,

KIET Group of Institutions, Delhi NCR Ghaziabad, Uttar Pradesh,

Abstract: This research focuses on the characteristics of water-based Acrylic resins, which have an

important commercial application in paint industry, are prepared through the polymerization of acrylic and

methacrylic acids or their corresponding esters. Among binders, acrylic resins find use in a variety of paint

and coatings that support the automotive, appliance, and coil industries. The key attribute of acrylic coatings

is their resistance to water, alkali, and oxidation. The water resistivity of acrylate-based binder was studied

to investigate the effect of cross-linkable monomer. The swelling behavior of any polymer network depends

upon the nature of the polymer, polymer solvent compatibility, and degree of cross-linking. Cross-linked

polymers are important because they are mechanically strong and resistant to heat, wear and attack by

solvents. Water resistivity of prepared polymer film latexes studied with help of swelling kinetics. From

the acrylate-based study it could be concluded that Acrylic resins may be used alone or as blend with other

resins to form the suitable binder system for coatings.


Evaluating the corrosion response of ultrasonically shot-peened squeeze-cast

AZ91 alloy reinforced with graphene nanoparticles

Sourav Ganguly1, A. K. Chaubey1, Bhagyadhar Bhoi1, Anindya Basu2 1Department of Advanced Materials Technology,

CSIR-Institute of Minerals and Materials Technology (IMMT), Bhubaneswar-751013, Odisha, India 2Department of Metallurgical and Materials Engineering,

National Institute of Technology Rourkela, Rourkela-769008, Odisha, India

Abstract: AZ91 magnesium alloy is one of the prevalently utilized Mg-Al alloy, however, it does not

exhibit good mechanical and corrosion response, because of the presence of the Mg17Al12 phase. During

the past many decades, AZ91 alloy has been modified through alloying addition improving its mechanical

as well as corrosion properties. However, the corrosion response of these modified alloys is limited owing

to the formation of cathodic secondary precipitates. Thus, AZ91 alloy-based nanocomposites exhibiting

improved mechanical performance, can be considered as a potential solution to the above-mentioned

challenges. The integration of nano-sized particles into the AZ91 alloy matrix can significantly influence

its microstructure which can play a major role in governing its corrosion response. The shot peening (SP)

process is a plastic deformation technique, where compressive stresses along with strain hardening are

induced in the upper layer of the material that considerably affect its corrosion property. Accordingly, the

current work evaluates the effect of ultrasonic shot peening (USP) on the corrosion behavior of the AZ91

alloy reinforced with graphene nanoparticles (GNPs), fabricated by the squeeze-casting technique. The

corrosion response of AZ91-xGNPs (x = 0.5, 1.0, 2.0 wt.%) nanocomposites with and without shot peening


was analyzed by employing immersion and hydrogen evolution in 0.1M NaCl solution. The results

displayed that the corrosion rate of the shot-peened nanocomposites are significantly lower than the non-

shot peened specimens, suggesting that the shot peening method is an effective way to reduce the corrosion

rate.


Effect of heat input on corrosion behavior of automotive zinc coated steel joint

Ankush Khansole1 and Sushovan Basak2, T. K. Pal3 and M. Shome4 1SRF, Mechanical Engg. Dept.,

C.V. Raman Global University, Bhubaneswar. India, 2Asst. Prof., Mechanical Engg. Dept.,

C.V. Raman Global University, Bhubaneswar. India; 3Metallurgical & Material Engg. Dept., Jadavpur

University, Kolkata, India. 4Material Characterization and Joining Research Group, R&D, Tata Steel Ltd., Jamshedpur.

Abstract: Now a day’s automotive industries focused on corrosion protection of metals. So coated steels are

introduced to solve the problem. Zinc coated (galvannealed) Interstitial Free (IF) steel is widely used in automotive

sector due to its durability, formability, good surface finish, impact resistance and corrosion resistance. Joining of

galvannealed coated steel is challenging because it creates porosity, health hazardous fumes during use of

conventional fusion welding processes. Also, zinc coating decrease the electrode life drastically due to formation of

brittle Zn-Cu alloy. In this research work, 1mm thick HIF-GA joined by pulse MIG brazing in push mode using Cu-

Si base filler wire (CuSi3Mn1) 0.8mm diameter. Here 100% pure argon is used as shielding gas with lap joint

configuration.

The aim of this study is to evaluate effect of heat input by varying current 40A to 60A and brazing speed 400 mm

min-1 to 500 mm min-1 on bead appearance and zinc degradation near to joint. It is observed that heat input is inversely

proportional to wetting angle and directly proportional to the bead width presence of higher amount of molten metal.

Due to that more zinc degradation is observed both in front side (at weld toe) and back side of the lap joint. The

corrosion behavior of joint was studied with electrochemical test and salt spray test (3.5% NaCl). The morphology

of weld joint was analyzed with EDS line scanning to understand the Zn degradation reducing corrosion resistance

because of Zn coating avoids corrosion. Potentiostatic polarization study has been done to determine corrosion rate

using Tafel plot current density vs circuit potential. It is found that lowest corrosion rate in base metal and then

increased from 0.88 mm year-1 to 12.26 mmyear-1 with increase in heat input from 61 Jmm-1 to 113 Jmm-1 due to

more loss of Zn coating.


Smart Garbage Management System

B Lokesh Sriram1, S.Radhika

1, B Sateesh

3, N.Ramudu

1

1RVR & JC College of Engineering, Guntur,

3Vignan’s Institute of Information Technology, Visakhapatnam

Abstract: With an increase in population, the scenario of cleanliness with respect to garbage management

is degrading tremendously. The overflow of garbage in public areas creates an unhygienic condition in the


nearby surroundings. It may provoke several serious diseases amongst the nearby people. It also degrades

the valuation of the area. To avoid this and to enhance the cleaning, a ‘smart garbage management system’

is proposed in this paper. In the proposed system, the level of garbage in the dustbins is detected with the

help of Sensor systems, and communicated to the authorized control room through the NodeMCU system.

The microcontroller is used to interface the sensor system with the system. A GUI is also developed to

monitor the desired information related to the garbage for different selected locations. This will help to

manage the garbage collection efficiently.


Durability of Precious Slag Ball Concrete under Various Exposure Conditions: A Waste from

Steel Industry



PMEC Berhampur, 761003 India 2Professor, Civil Engineering Department,

IGIT, Sarang, 759146, India

Abstract: The use of waste materials in the construction industry is critical because construction costs are

rising and natural resources are running out. Increasing waste production, which has a negative impact on

the environment, can thus be reduced. This study discusses the use of precious slag Balls, a waste material

from a steel manufacturing plant, as an aggregate in concrete. As concrete is designed to withstand and

perform in a variety of environmental exposures, an attempt is made here to determine the suitability of

precious slag balls concrete in a variety of exposure conditions such as mild, moderate, severe, very severe,

and extreme. The durability of steel slag concrete is compared to conventional concrete under various

exposure conditions using ultrasonic pulse velocity testing, sorptivity testing, and acid resistance testing.

Steel slag concrete performs better in extreme conditions than conventional concrete and can thus be used

in extremely harsh environments such as tidal zones and subsoil structures.


Influence of Steel Industry Waste as Fine Aggregate in Concrete: NDT Analysis



PMEC Berhampur, 761003, India 2Professor, Civil Engineering Department,

IGIT, Sarang, 759146, India

Abstract: An increase in construction activities, an increase in environmental pollution, and over-

exploitation of natural resources are serious problems in our living world. Using industrial wastes as partial

replacement material with concrete materials is a step to make a safe and healthy environment. Due to the

severe environmental pollution and health hazards associated with the cement and construction industries,

they are under the strict scrutiny from the governments and environmentalists. PS Ball is an abbreviation


of Precious Slag Ball, an innovative material that can be produced by rapid cooling of slag which generated

from steel making process by means of Slag Atomizing Technology (SAT). PS Ball is an environment-

friendly material proved by Ministry of Environment. This paper investigates the influence of different

amounts of recycled fine aggregates obtained from the steelmaking industry. In the present study, the effects

of replacing sand by different percentages of PS Balls on compressive strength properties of concrete have

been investigated. Replacement percentages were 9, 12,15,18,27 and 36% by weight of used fine aggregate.

Properties of fresh and hardened concrete were experimentally investigated. All the results of the performed

tests indicate a better performance of mixtures containing this PS Balls compared with plain cement

reference concrete in terms of mechanical properties and durability indicators. The summery and

discussions provided in this paper should provide new information and knowledge on the applications of

greener and sustainable PS Balls concrete.


Moisture effects leading to Tg depression in GFRP composites: An analysis

S. Beura11, A. P. Chakraverty2, Dibyajyoti D. Pradhan2, D.N. Thatoi1 and U. K. Mohanty1 1Department of Mechanica Engineering, ITER,

SOA (Deemed to be) University, Bhubaneswar-751030, Odisha, India 2School of Physics,

GangadharMeher University, AmrutaVihar, Sambalpur-768004, Odisha, India

Abstract: Eighteen ply hand laid-up, epoxy resin-E-glass composite samples were exposed to different

ageing environments. These included hydrothermal immersion, hygrothermal treatment and ageing

processes carried out in the open outdoors. Low temperature Differential scanning calorimetry (DSC) was

employed to compute the Glass Transition Temperature (Tg) of the treated test specimens. These Tg values

were compared with the as-cured Tg values of the samples. A Tg depression was observed in samples treated

in all the ageing processes, higher depressions being associated with higher periods of exposure. Severe

ageing conditions outdoors, accounted for the highest Tg depressions.


A novel solution based methodology to create super-hydrophobic zinc oxide

nanostructures on galvanised steel for enhancing corrosion protection

A K Gupta1, T K Rout2, T Venugopalan2, R S Moirangthem1 1Department of Physics,

Indian Institute of Technology (Indian School Mines), Dhanbad. 826004, India. 2R&D, Tata Steel Ltd, Jamshedpur

Abstract: More than sixty percentages of total galvanised products are being used for construction

application. This galvanized sheets, while inservice, require hazardous hexavalent chromate or thin organic

coating treatment to avoid early zinc oxidation and darkening. An eco-friendlynovel physio-chemical based

methodology has been explored as an alternate surface treatment to create super-hydrophobic surface to


prevent early zinc oxidation.Galvanisedsteel substratewas exposed into an aqueous solution of Zinc nitrate

hexahydrate and Hexamethylenetertramine mixture under mechanical stirring to grow uniformlyZnO-

nanorodson zinc surface. Electrochemical impedance spectroscopy(EIS) measurement is used to find the

corrosion rate of supper hydrophobicsurface.The result showsthat corrosion rate of super hydrophobic

surface is lower than the galvanized mild steel with the solution of 3.5 wt% NaCl which gives remarkable

improvement in corrosion resistance properties of super hydrophobic surface. The alternation of surface by

growing zinc nanorodsalso revealed firm adhesion to the surface with a nano-indentation hardness value of

0.5 GPa. The aqueous solution producessuperhydrophobic surfacealong with corrosion resistance though

dipping technique is considerable interest used for broad applications in industry.


Ionic solution based electrochemical synthesis of graphene and its corrosion

protection characteristics

Amlan Das1,*

, Archana Mallik2

1Electrometallurgy and Corrosion Laboratory,


National Institute of Technology, Rourkela, Odisha, India

Abstract: Graphene, a Nobel Prize winning discovery has brought in a revolution in the field of materials.

Accompanied with exceptional mechanical, electrical and chemical properties, its applications are widely

varied. Impermeability and chemical inertness are some astounding features of this carbon-based material,

which has led to its exploration in the field of corrosion prevention. The present work describes the

synthesis process of graphene through a green, non-toxic route. The exfoliation of graphene through this

methodology produces few layer graphene nanosheets (FLGNs). Authors have worked out the synthesis

approach through 4 different stoichiometric solutions. The corresponding synthesized graphene has been

characterized by x-ray diffraction, UV and FTIR to understand the chemical structure. SEM and TEM

depict a layered morphology of the FLGNs with transparency. The synthesized graphene was

electrophoretically deposited onto copper at different iterations and corrosion tests were conducted in 0.6

M NaCl solution. Polarization tests and impedance measurements highlighted the efficiency of graphene

as a barrier against corrosion. Authors also made an attempt to understand the effect of different layers of

the coating on the substrate and its protection ability.


Role of Slag Composition on Slag Flow Characteristics in Blast Furnaces

Sujata Devi1,*, S K Sharma2, B Sarkar1, B R Babu2 1Research and Development Centre for Iron and Steel

2Rourkela Steel Plant

A study of the flow characteristics of blast furnace slag is important to record the softening and melting

phenomena in blast furnace which greatly influence the extent and location of the cohesive zone having a


direct say on the blast furnace operation, quality of hot metal and the coke consumption. Hence the fluidity

and melting characteristics of slag play a major role in determining the blast furnace productivity. Keeping

this in view, the present assignment has been taken for BF#5, RSP to find out the effect of slag composition

on its flow characteristics and on slag viscosity in the furnace. In the present work, hot stage microscope is

used to determine the flow characteristics of blast furnace slags obtained from different blast furnaces.

FACTSAGE thermodynamic software also been used for the calculation of liquidus temperature of the slag

(equilibrium module) and viscosity of slag (viscosity module). Results shows that the characteristic

temperatures generally increases with the increase in the basicity of the slag with fixed high alumina content

which is amphoteric in nature. With the increase in the basicity, the difference between the Flow

Temperature and Softening Temperature is decreased. So under the composition’s ranges that were

examined, high basicity is advantageous for the blast furnace operation as it narrows the softening-melting

range. This shows that low value of % MgO is beneficial for obtaining the short slag within the range of

compositions. So, the flow characteristics of blast furnace slag is important to record the softening and

melting phenomena in blast furnace which influence performance of blast furnace. From the viscosity

calculations, It was found that the viscosities of BF#5 slags are in the range of 7 to 9 Poise at 1450°C. This

range of viscosities found in industrial blast furnace slags. So, it is important to keep good slag fluidity in

the blast furnace operation for keeping good permeability and good drainage of slag during tapping. This

in turn improves blast furnace performance.

Student Volunteers

Adarsh Kushwaha

Amlan Das

Arka Ghosh

Avula Leela Sukh Brahma Reddy

Deepak Kumar Sahu

Ganesh Gupta

Jagadish Parida

Mouparna Manna

Priti Singh

Pundrikaksha Upadhyay

Pushpendra Kumar Dwivedi

Rakesh Roshan

Shubham

Srinivasu Dasari

Sudeshna Parida

Vadla Suman

Organised by: Department of Metallurgical and Materials Engineering

National Institute of Technology Rourkela

Documents

ICPCM-2021(Abstract book)