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Author Topic: About grain boundary energy  (Read 149 times)
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« on: November 04, 2009, 04:48:13 AM »
Why is grain boundary energy always smaller than the sum of surface energy of two adjacent grains？
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« Reply #1 on: November 04, 2009, 07:46:04 AM »
On a grain boundary some of the 'dangling bonds' of each surface are no longer dangling and there is some bondage between grains.  A dangling bond is of higher energy than a real bond, so less dangling bonds, less potential energy.

Dangling bond aka unsatisfied valency
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