HW4 - HOMEWORK 4 Due June 15, 2010 The homework MUST be...

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HOMEWORK 4 Due June 15, 2010 The homework MUST be legible, if it is not, you will receive a ZERO PART A. DEFINITIONS/NOMENCLATURE (5 points) 1. Cu dissolved in Ni is an example of a(n) _____________________ solid solution. 2. The effective penetration distance of a diffusing species is proportional to ______________. 3. Small cation and anion vacancy clusters that are formed in ionic solids are referred to as _____________________. 4. The time dependent change in composition is related to the ________________________ of the composition versus distance relationship. 5. The movement of atoms in a pure material is termed ______________________________.
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PART B. CIRCLE THE APPROPRIATE ANSWER (10 points) 1. Fick’s second law defines diffusion that is time dependent / independent . 2. The activation energy for bulk diffusion is higher / lower than the activation energy for grain boundary diffusion. 3.
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HW4 - HOMEWORK 4 Due June 15, 2010 The homework MUST be...

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