These lecture notes cover the kinetics segment of 3.205, which is typically taught in a six-week period in the second half of the semester. The thermodynamics segment of 3.205, taught in the first half of the semester, has not yet been incorporated into OCW.
Lecture notes files.
| SES # |
TOPICS |
LECTURE SLIDES |
LECTURE SUMMARIES |
| Irreversible Thermodynamics |
| L1 |
Fields and Gradients
Fluxes
Continuity Equation
Entropy Production
Conjugate Driving Forces and Fluxes
|
(PDF) |
(PDF) |
| Diffusional Transport |
| L2 |
Mass Diffusion in a Continuum
Diffusion Coefficients
Mass Diffusion: Fick's Laws
Self-Diffusion
Interdiffusion
The Kirkendall Effect
Capillarity-Driven Diffusion
Stress-Driven Diffusion
|
(PDF) |
(PDF) |
| L3 |
Solutions to the Diffusion/Heat Equation
Mass Diffusion: Methods of Solving the Diffusion Equation (Fick's Second Law)
|
(PDF) |
(PDF) |
| L4 |
Atomistic Mechanisms of Diffusion
Interphase Layer Growth in Interdiffusion
Atomistic Mechanisms of Diffusion: Vacancy, Interstitial, etc.
Theory for Diffusion Coefficients and Their Temperature Dependence
|
(PDF) |
(PDF) |
| L5 |
Diffusion in Ionic Crystals: Kroger-Vink Notation for Point Imperfections
Schottky and Frenkel Intrinsic Disorder
Extrinsic Defects
Self-Diffusion in Pure and Impure KCl
Also includes optional information about Diffusion in Non-Stoichiometric Oxides
|
(PDF) |
(PDF) |
| L6 |
Role of Micro Structure in Diffusion: Short-Circuits
Short-Circuit Diffusion in Crystals: Diffusion Spectrum in Defective Crystals, Dislocation Structure and Short Circuits, Grain-Boundary Structure and Diffusion
|
(PDF - 1.2 MB) |
(PDF) |
| Phase Transformations |
| L7 |
Homogeneous and Heterogeneous Nucleation
Introduction to Phase Transformations Lectures
Continuous vs. Discontinuous Transformations
Nucleation Theory, including Interplay between Surface and Volumetric Energy Terms, Coherency Strain Energy
|
(PDF - 1.2 MB) |
(PDF 1)
(PDF 2)
|
| L8 |
Diffusional Growth
The "Moving Boundary" Problem
Growth Phenomena: Interface Control vs. Diffusion Control
Diffusion-Controlled Growth, including Melting of a Pure Material, Interdiffusion with a Moving Boundary, and Alloy Solidification
|
(PDF) |
(PDF) |
| L9 |
Solidification: Thermal and Solute Gradients and Interfacial Shape Stability
Cells and Dendrites
Casting Microstructures
Microsegregation
|
(PDF) |
(PDF) |
| L10 |
Spinodal Decomposition: Phase Diagrams with a Spinodal Region
Free Energy of a Compositionally Inhomogeneous Solution
Interdiffusion within the Spinodal Region
Kinetics of Spinodal Decomposition
Spinodal Microstructures
|
(PDF) |
(PDF) |
| Microstructural Changes |
| L11 |
Particle Coarsening: Capillarity as a Driving Force
Coarsening in Pb–Sn Solid/Liquid Alloys
Gibbs-Thomson Effect
Kinetics in the Diffusion-Controlled Regime
|
(PDF) |
(PDF) |
| L12 |
Sintering
Grain Growth
Grain-Growth Kinetics in Two and Three Dimensions
Kinetics of Nucleation and Growth Transformations: Time-Temperature-Transformation Diagrams
|
(PDF) |
(PDF) |