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MSE 442_Homework_6 - MSE 442 Materials Processing II Autumn...

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MSE 442 Materials Processing II - Autumn Quarter 2012 Homework Assignment 6 (Nov. 9, 2012) Due Date: Nov. 14, 2012 I. Assuming that a powder has a surface energy of 1 J/m 2 , estimate the maximum amount of energy per unit volume that is available for densification for spherical particles with a diameter of 1 μ m compacted to a green density of 60% of the theoretical density. Assume that there is no grain growth and the grain boundary energy is 0.5 J/m 2 . II. Write equilibrium coefficient expressions for the following reactions:
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