Structure of Materials
Structure of Materials. Instructor: Dr. Anandh Subramaniam, Department of Materials Science and Engineering, IIT Kanpur. Atomic arrangement in crystalline solids, defects in crystalline solids, microstructure evolution, quantification of microstructures. Topics includes: bonding in materials; geometry of crystals: symmetry, lattices; Miller indices; crystal structures; defects in crystals; diffusion; phase diagrams; phase transformations; and effect of microstructure on properties.
(from nptel.ac.in
Lecture 16 - Metallic Crystals: Diamond Cubic, Packing Fraction, Atomic Density, Voids
VIDEO
Model: primitive unit cell of BCC crystal. Diamond cubic (DC) crystal. Various definitions of 'density in materials science'. Packing fraction. Atomic density. Voids (CCP).
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Lecture 01 - Overview
Geometry of Crystals: Symmetry, Lattices
Lecture 02 - Symmetry, Symmetry Operators, Point Groups and Space Groups
Lecture 03 - Solids, Definition of Crystal, Constructing 1D, 2D Crystals, Unit Cells
Lecture 04 - Review of Concepts related to Lattices, Motifs, Crystals and Unit Cells
Lecture 05 - 2D Lattices (cont.), Mystery of Missing Lattices
Lecture 06 - Space Filling, Sublattices and Subcrystals
Lecture 07 - 3D Lattices: 14 Bravais Lattices
Lecture 08 - 3D Lattices: 14 Bravais Lattices (cont.), Making Crystals: 1D
Lecture 09 - Making Crystals: 2D, 3D
Lecture 10 - Making Crystals: 3D (cont.), 7 Crystal Systems
Lecture 11 - 7 Crystal Systems (cont.), Ideal versus Real Crystals, Microstructure
Miller Indices
Lecture 12 - Microstructure (cont.), Miller Indices: Directions, Family of Directions
Lecture 13 - Miller Indices: Family of Planes, Miller-Bravais Indices
Crystal Structures
Lecture 14 - Miller Indices (cont.), Structure of Solids: Overview and Metallic Solids
Lecture 15 - Metallic Crystals
Lecture 16 - Metallic Crystals: Diamond Cubic, Packing Fraction, Atomic Density, Voids
Lecture 17 - Metallic Crystals: Voids (HCP), Voids in BCC Crystal
Lecture 18 - Addition of Alloying Elements: Segregation/Phase Separation, Solid Solution
Lecture 19 - Addition of Alloying Elements: Solid Solution (cont.), Intermediate Compounds
Lecture 20 - Revision of Intermediate Compounds, Crystalline Solids: Ionic Solids
Lecture 21 - Crystalline Solids (cont.), Defects in Crystals
Defects in Crystals
Lecture 22 - Defects in Crystals: Defect Structure, Point Defects
Lecture 23 - Defects in Crystals: Point Defects (cont.)
Lecture 24 - Defects in Crystals: Dislocations
Lecture 25 - Defects in Crystals: Dislocations (cont.)
Lecture 26 - Defects in Crystals: Dislocations (cont.)
Lecture 27 - Defects in Crystals: Dislocations (cont.)
Lecture 28 - Defects in Crystals: 2D Defects
Lecture 29 - Defects in Crystals: 2D Defects (cont.)
Diffusion in Solids
Lecture 30 - Diffusion in Solids: Kirkendall Effect, Fick's Laws
Lecture 31 - Diffusion in Solids: Atomic Mechanisms, Applications of Fick's II Law
Phase Diagrams
Lecture 32 - Phase Diagrams: Definition, The Gibbs Phase Rule
Lecture 33 - Phase Diagrams: Unary and Binary Phase Diagrams, Isomorphous System
Lecture 34 - Phase Diagrams: Tie Line and Lever Rule, Isomorphous Phase Diagrams
Lecture 35 - Phase Diagrams: Eutectic Phase Diagrams
Lecture 36 - Phase Diagrams: Peritectic Phase Diagrams, The Fe-Cementite Phase Diagram
Phase Transformations
Lecture 37 - Phase Transformations: Overview
Lecture 38 - Liquid to Solid Phase Transformation: Homogeneous Nucleation
Lecture 39 - Heterogeneous Nucleation, Time-Temperature-Transformation (TTT) Diagrams
Lecture 40 - Models for Computing Transformation Rate, Phase Transformations in Steel
Lecture 41 - Continuous Cooling Transformation (CCT) Curves
Lecture 42 - Hardness of Martensite, Overview of Heat Treatment
Lecture 43 - Alloy Steels, The Role of Alloying Elements, Precipitation Hardening
Lecture 44 - GP zones, Precipitate Coarsening, Glass transition
Lecture 45 - Recovery, Recrystallization and Grain Growth, Cold Work and its Effect on Properties