Defects in Crystalline Solids I. Instructor: Prof. Shashank Shekhar, Department of Materials Science and Engineering, IIT Kanpur.
1111 years
40
Crystalline materials show many properties and phenomena which are dependent on defects in the presence of defects. This course intends to explore the defects in crystalline materials and their effects on properties, primarily mechanical properties. At the end of the course, the student should be able to have a broad understanding of defects in materials and their role in determining properties of materials; have a thorough understanding of the structure of dislocations in various crystals and their elastic fields; and have an overview of plastic deformation mechanisms and the role of dislocations in plasticity, fracture, fatigue and creep. (from nptel.ac.in)
Course Currilcum
- Lecture 01 – Introduction to Defects Unlimited
- Lecture 02 – Equilibrium Points Defects Unlimited
- Lecture 03 – Energy of Vacancy Formation Unlimited
- Lecture 04 – Vacancy Concentration Measurement Techniques Unlimited
- Lecture 05 – Self-interstitial Defects, Frenkel Defects Unlimited
- Lecture 06 – Schottky Defects, Extrinsic Defects Unlimited
- Lecture 07 – Interstitials in Iron Unlimited
- Lecture 08 – Defects Reaction, Kroger-Vink Notation, Notation of Schottky Defect Unlimited
- Lecture 09 – Defects Reaction and its Thermodynamics Unlimited
- Lecture 10 – Equilibrium Concentration using Defects Reaction Unlimited
- Lecture 11 – Examples on Defect Reaction Unlimited
- Lecture 12 – Diffusion (Interstitial Diffusion) Unlimited
- Lecture 13 – Non-steady State Diffusion Unlimited
- Lecture 14 – Self Diffusion and Examples Unlimited
- Lecture 15 – Diffusion in Substitutional Alloys, Diffusion along Defects Unlimited
- Lecture 16 – History of Dislocations Unlimited
- Lecture 17 – Volterra Model, Structure of Dislocations, Burger Vectors Unlimited
- Lecture 18 – Characteristics of Dislocations Unlimited
- Lecture 19 – Mixed Dislocations, Dislocation Loops Unlimited
- Lecture 20 – Elastic Continuum Model, Strain Field for Screw Dislocations Unlimited
- Lecture 21 – Stress and Strain Fields Unlimited
- Lecture 22 – Stress State around Edge Dislocations, Elastic Energy of Dislocations Unlimited
- Lecture 23 – Glide Forces on Dislocations, Line Tension on Dislocations Unlimited
- Lecture 24 – Climb Forces on Dislocations, Interaction between Dislocations Unlimited
- Lecture 25 – Image Forces on Dislocations Unlimited
- Lecture 26 – Resistance to Dislocation Motion, Peierls Nabarro Valley Unlimited
- Lecture 27 – Slip System and Examples Unlimited
- Lecture 28 – Dislocations and Slips + Examples Unlimited
- Lecture 29 – Critical Resolved Shear Stress and Examples Unlimited
- Lecture 30 – Glide + Kinks Unlimited
- Lecture 31 – Cross Slip + Climb Unlimited
- Lecture 32 – Climb + Jogs Unlimited
- Lecture 33 – Examples on Jogs + Dislocation Intersection Unlimited
- Lecture 34 – Dislocation Intersection and Step Characteristics + Superjogs Unlimited
- Lecture 35 – Strain and Strain-rate due to Dislocation Motion + Velocity of Dislocations Unlimited
- Lecture 36 – Observation of Dislocations (cont.), Dislocation Dynamics Unlimited
- Lecture 37 – Dislocations in FCC Materials, Partial Dislocations Unlimited
- Lecture 38 – Partial Dislocations (cont.), Stacking Fault Unlimited
- Lecture 39 – Thompson Tetrahedron + Examples Unlimited
- Lecture 40 – Dislocations in BCC, Asymmetry of Slip Unlimited
