Syllabus

Module 1
Introduction: Different types of materials and applications, Surface characterization (Physico – chemical characteristics of surface layers) Surface visualization, Geometry of non – conforming surfaces (analysis and measurement of surface roughness), Surface and subsurface stress distributions and Hertzian contact between solid surfaces, Adhesion and Ploughing: 8 Contact Hours

Module 2

Friction Testing, Frictional behavior (Solid – solid contact, liquid mediated contact), Friction mechanism of metals, ceramics and polymers, solid lubricants. Thermal properties of sliding surfaces, Flash Temperature and their mode of estimation: 6 Contact Hours

Module 3

Wear: Classification of wear and wear testing, role of humidity the various modes of wear: adhesive, delamination, fretting, abrasive, erosive, corrosive, oxidizing (mild and severe), melt and the wear-mechanism maps, types of particle present in wear debris, Wear Debris particle analysis and prediction of component performance: 8 Contact Hours

Module 4

Surface Engineering Methods to reduce wear: Electrolytic, Spraying, Hard-facing, Chemical Vapour Deposition (CVD), Plasma Vapour Deposition (PVD), Mechanical methods, Surface melting and Thermo chemical treatments: 6 Contact Hours

Module 5

Lubrication: Solid lubricants, Liquid lubricants, Fluid film lubrication, Introduction to Elasto-Dynamic (ED) and Elasto- Hydro Dynamic (EHD) Lubrication, Mixed and Boundary lubrication, micro and nano tribology, solution of tribological problems, Competitive analysis of friction wear and lubrication phenomena: 6 Contact Hours

Module 6

Case Studies of different set of tribocouples to correlate the theoretical understanding, research perception and product development for structural and load bearing applications: 6 Contact Hours

To provide an in-depth understanding of the mode of failure of structural and load bearing ceramics under relative motion

To understand the influence of microstructure on the friction and wear behavior of materials

To understand the influence on lubrication and their effect on the performance during continuous motion and under load.

To utilize the above knowledge to design, develop and upgrade bulk or coating for different commercial and wear resistance applications.

After completing the course, the students will have
1. A knowledge of the tribological properties friction, wear and lubrication to estimate failure analysis of bulk or coatings.
2. Correlate important wear behavior with the end properties of fabricated ceramics
3. Capability to know how material is subject to premature damage under relative motion and load bearing applications.
4. Knowledge to suggest tailoring of mechanical properties for customized wear resistance product intended for specific and/or strategic applications
Course Outcome:
CO1: To be well versed about different load bearing ceramics and the properties required for wear resistant application areas.
CO2: To correlate fundamental aspects on stress generation with respect to different contact gepmetry and their utility to analyse the tribological properties
CO3: Able to design and fabricate different oxide based ceramics for specific applications like hip replacement femoral head- acetabular socket, cutting tools, disc brakes, wear resistance thermal barrier coatings, etc.
CO4: Able to do post-failure analysis of components to ascertain the root cause of failure and to design processing and microstructural parameters for property upgradation and better reliability.
CO5: Able to think of innovative design and new materials with societal benefits.

B. Bhushan, Principles and Applications of Tribology, Wiley –IEEE , 1999

Bikramjit Basu, Tribology of Ceramics and Composites: A Materials Science Perspective, Wiley , 2012

K. C. Ludema, Friction, Wear, Lubrication: A Textbook in Tribology, CRC Press , 1996

R. D. Arnell, P. Davies, J. Halling, and T. Whomes,, Tribology Principles and Design Applications, MacMillan , 1991

Tribology International, https://www.sciencedirect.com/journal/tribology-international

Tribology Transactions, https://www.tandfonline.com/journals/utrb20