Teaching

Jan- May 2015

Dr. Ravi Kumar. N V is offering the following course during Jan -May 2015 semester for graduate students and senior undergraduate students: Materials for Extreme Environments (MM5130).


Objectives: This course provides an opportunity for the materials engineers/scientists to probe materials’ response and design microstructures for extremities bridging the gap between science and engineering disciplines.


Course Title

Materials for Extreme Environments

Course No

MM5130

Department

Metallurgical and Materials Engineering

Structure

3

0

0

3

Offered for

Senior UG/MTech/MS/PhD students

Statue

Elective

Faculty

Ravi Kumar, N V (NVRK)

COT


Course Content:

Introduction: Basic principles of materials selection; principles as laid down by Ashby, Materials selection charts, practical problems in mechanical design; Nature of extreme environments: Ultra-high & ultra-low temperatures, High static & dynamic pressures, Radiation effects, Shallow-sea & Deep-sea environments; biofouling issues, hydrostatic pressure, Materials for Ultra-high temperatures: Processing & microstructure design; Intermetallics, Superalloys, oxide and non-oxide ceramics, ceramic coatings, porous ceramics and foams, cermets; Thermal stresses, Design for thermal shock, tailoring of thermal shock resistant microstructures; Materials for Ultra-low temperatures (Cryogenic temperatures): Physics of low temperatures, properties of materials at cryogenic temperatures; Materials under high static & dynamic pressures: Design of experiments & challenges, phase transitions, characterization techniques for high pressures, Diamond anvil cells, design for superhardness, definition of shock front, Rankine-Hugoniot relations, Equations of State (Mie Gruneissen, Murnaghan), Experimental techniques for shock experiments, Gas gun experiments, metallization of hydrogen, high energy density materials, Transparent ceramics for armor and ballistic applications; Radiation effects: Mechanical properties of materials under radiation damage; Materials under marine environment: Biomineralization under extreme conditions, examples, biomimetics


Text book:

Materials selection in mechanical design: M F. Ashby, Pergamon press, 2011.

Materials under extreme conditions: Vincenzo Schettino & Roberto Bini, Imperial college press, 2012.


Reference book:

Shock waves: Measuring the dynamic response of materials: William M. Isbell, Imperial college press, 2005.

 



July-Nov 2014

Course title: X-Ray Diffraction Techniques (MM5210)

Dr. Ravi Kumar. N V is offering the above course during Jul -Nov 2014 semester for graduate and senior undergraduate students.


Course Title

X-ray Diffraction Techniques

Course No

MM5210

Department

Metallurgical and Materials Engineering

Structure

3

0

0

3

Offered for

4th yr UG, 5th yr DD, M.Tech, MS, and Ph.D students

Statue

Elective

Faculty

Ravi Kumar, N V (NVRK)

COT


Course Content:

Fundamental properties of X-rays : Historical perspective, Nature of X-rays , Production of X-rays, Absorption . Scattering & diffraction: Scattering by a single electron , Scattering by a single atom , Scattering by a unit cell , Historical perspective, Diffraction from crystals, Braggs’ law, Laue’s equations , Diffraction methods. Diffraction from polycrystalline structures, determination of crystal structures : X-ray diffractometer essentials, Estimation of diffraction intensity: Structure factor , Polarization factor, Multiplicity factor , Lorentz factor , Absorption factor, Temperature factor, General formula of the intensity of diffracted rays .

Crystal structure determination: Cubic, tetragonal & Hexagonal systems . Hanawalt & Fink methods of identification of unknown samples. Lattice parameter determination . Crystallite size, strain, amorphous & partially crystalline samples, Depth of penetration. Diffractometer measurements: X-ray optics, Detectors , Counters , Scintillation detectors, Powder photographs , Laue photographs . Stress measurements: Applied & residual stress , Concepts of elasticity, biaxial & triaxial stress analysis , Methodology , Practical difficulties

Text book: Elements of X-ray Diffraction- B D Cullity and S R Stock.

The course material and lecture slides will be uploaded on moodle. Students crediting the course can log on to https://courses.iitm.ac.in/ for downloading the lecture slides. The lecture slides will be uploaded after every lecture in the classroom.

The first lecture of this course is scheduled on 4th August 2014 (Monday) at 9 am in the B slot in MSB 114.