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Indian Institute of Science Education and Research Berhampur
PHY 424: Defects in Materials (4 Credit)
Course Content:
Brief introduction to perfect crystals including lattice geometry, point group, space group and crystal structures.
Defect classification in crystalline systems - Point defects in metallic ionic and covalent crystals equilibrium and non-equilibrium defects dislocations, continuum and atomistic theory, dislocations in different lattices, dislocation reactions, interaction and multiplication of dislocations, dislocation sources, glide, cross slip, climb - Stacking faults, twinning - Grain boundaries, angle and high angle boundaries, special boundaries, ledges, inter-phase boundaries.
Defect interactions - interaction between point defects and dislocations, interaction between precipitates and dislocations.
Brief overview of role of defects in controlling optical, electrical, magnetic, semiconducting and superconducting properties of materials.
Brief introduction to techniques for characterization of defects.
References:
- W.D. Kingery, H.K. Bowen and D.R. Uhlmann.: Introduction to Ceramics, 2nd ed., John Wiley and Sons, 1976
- A. C. Damask and G. J. Dienes: Point Defects in Metals, 1st ed., Gordon and Breach, 1963
- D. Hull and D. J. Bacon: Introduction to dislocations, 4th ed., Butterworth-Heinemann, 2001
- D.A. Porter and K.E. Easterling: Phase Transformation in Metals and Alloys, 2nd ed. Chapman and Hall, 1992
Prerequisites: Condensed Matter Physics, Thermodynamics
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