Illinois MATSE 280 Introduction to Engineering Materials, Lecture 6: Diffusion in Solids
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Abstract
Diffusion in Solids
ISSUES TO ADDRESS...
- How does diffusion occur?
- How can the rate of diffusion be predicted forsome simple cases?
- How does diffusion depend on structure and temperature
Content
- Diffusion- Steady and Non-Steady State
- Simple Diffusion
- Inter-diffusion
- Self-diffusion
- Substitution-diffusion
- Diffusion Mechanisms
- Processing using Diffusion
- Modeling rate of diffusion
- Steady-state Diffusion
- Example: Chemical Protection Clothing
- Example: Diffusion in steel plate
- Example: Diffusion of radioactive atoms
- Where can we use Fick’s Law?
- Non-Steady-State Diffusion
- Example: Non-Steady-State Diffusion
- Example: Processing
- Diffusion Analysis
- Diffusion and Temperature
- Example: Comparing Diffuse in Fe
- Connecting Holes, Diffusion, and Stress
- Other Types of Diffusion (Beside Atomic)
- Inter-diffusion (diffusion couples)
- Kirkendall Effect: What if DA > DB?
- Diffusion in Compounds: Ionic Conductors
- Ionic Conduction: related to fuel cells
- Example: solid-oxide fuel cell (SOFC)
- Ceramic Compounds: Al2O3
- Summary: Structure and Diffusion
Credits
This notes were developed by Prof. Duane Johnson and uploaded by Omar Sobh.
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