Principles and Applications of Engineering Materials
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Lecture 1 (Week 0.5) : Introduction to materials science and engineering
- Materials science and engineering is about synthesis,
properties, and structure relations.
- The structure can be divided into: electronic structure, atomic
structure, and microstructures
- The properties can be divided into mechanical, thermal,
electrical, magnetic, optical properties.
- Synthesis can be divided into (depending on the final state
of materials) liquid-to-solid, vapor-to-solid, solid-to-solid
This course will expand around the above three areas.
Lecture 2 (Week 1 and 2): Introduction to electronic configurations of
elements (Chapter 2)
- Schrodinger equation for electrons
- Electron wave functions (s, p, d, … electrons)
- Energy levels or eigen-energy
- Electronic configurations in terms of the energy levels
- Valence and core electrons
- Understanding the periodic table
Lecture 3 (Week 2&3): Atomic bonding (Chapter 2)
- Why do atoms bond?
- How do electrons bond?
- Overlapping of electron wave functions
- The concept of electronegativity and lowering of the free
- Four types of atomic bonding: hydrogen, ionic, covalent, and
- Origin of the repulsive potentials.
- Some physical properties interpreted by the bonding
Lecture 4 (Week 4&5): Crystal structures or atomic structures (Chapter 3)
- Concept of translational symmetry
- Bravais Lattice and unit cell
- 2D and 3D Bravais lattices
- Atomic packing density
- Some typical crystal structures: fcc, bcc, hcp
- Miller index (points, lines, planes)
- Bragg diffractions
Lecture 5 (Week 6&7): Point defects in crystalline materials, diffusion and
kinetic process in materials (Chapter 4)
- Types of point defects
- Thermodynamics of point defect formation
- Introduction of diffusion (Ficks’ 1s and 2nd laws)
- Relation between point defects and diffusion
Lecture 6 (Week 8&9): Line and volume defects (Chapter 5)
- Introduction of the theoretical strength of materials
- Stress, strain, and maximum resolved stresses
- Introduction to dislocations
- Bergers vectors, edge and screw dislocations
- Dislocation motions and relation to the strength
- Two-dimensional defects: surfaces, grain boundaries,
- Volume defects – voids, holes, inclusions, etc.
Lecture 7 (Week 9 &10): Mechanical properties of materials (Chapter 9)
- Introduction to the concepts of strain and stress
- Introduction to elasticity, Hook’s law, elastic constants.
- Time dependent deformation: anelasticity, relaxation,
- Plastic deformation: yielding, fracture, hardening.
- Fracture mechanics: Griffith model, fracture toughness
Lecture 8 (Week 11&12): Microstructure development and kinetics of phase
transitions (Chapter 7 & 8)
- Review of thermodynamics and phase transitions
- State variables, thermodynamic potentials, Maxwell relations
- What is a phase transition? How to describe it?
- Gibbs phase rule
- Solidification and melting
- Introduction to phase diagrams
- Single component system and binary systems
- Classical nucleation theory: Homoegeneous and heterogeneous
- TTT diagram and kinetics of phase transition and growth
- Zone melting, crystal gwoth
Lecture 9 (Week 13&14): Electrical properties of materials (Chapter 10)
- Druid model of electrical conductivity
- Hall effect and electronic band structure
- Energy band
Lecture 10 (Week 15&16): Magnetic properties of materials (Chapter 12)
Lecture 11 (Week 16&17): Optical properties of materials (Chapter 11)
MSE 2001 course taken at the Georgia Institute of Technology.
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