I was studying about diffusion in solids. The simplest definition of diffusion is "movement of atoms in solids under thermal energy and a gradient" is called diffusion. Where the gradient can be concentration or Electric / Magnetic field ...
This is relatively simple topic and can be easily understood. But the topic is a little important as questions regarding time taken for carburization are repeatedly asked in the question papers.
The important topics to study include:
- Diffusion mechanisms (vacency, interstitial ..)
- Rate of diffusion in steady state and non steady state (Ficks first law and second law)
- Kirkendall effect
Perfect resource for this topic is study material by IEI. But the book by Raghavan is also very very good. The book is available here
Don't forget to grab a copy of Material Science and Engineering book, which is essential for preparing for AMIE, Material Science.
with warm regards
allmyposts
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