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, is not included in this publication.
| 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) |
