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aibude163

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dyc_2008

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小木虫: 金币+0.5, 给个红包,谢谢回帖
franch: 金币+2, 谢谢回帖交流, 2012-11-05 19:42:06
aibude163: 金币+5 2012-11-05 22:59:20
aibude163: 金币+5 2012-12-20 08:54:39
coincidence site lattice
In coincident site lattice (CSL) theory, the degree of fit (Σ) between the structures of the two grains is described by the reciprocal of the ratio of coincidence sites to the total number of sites. Thus a boundary with high Σ might be expected to have a higher energy than one with low Σ. Low-angle boundaries, where the distortion is entirely accommodated by dislocations, are Σ1. Some other low Σ boundaries have special properties especially when the boundary plane is one that contains a high density of coincident sites. Examples include coherent twin boundaries (Σ3) and high-mobility boundaries in FCC materials (Σ7).
首先,要明确要建立的是那种晶界,也就是你要把位相关系先定下来。
个人认为,在relax的时候,非晶界原子要‘锁定’(不能让他们移动),否则要乱套。
4楼2012-11-05 15:01:37
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aibude163

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3楼2012-11-05 12:47:51
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5楼2012-11-05 23:04:07
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dyc_2008

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sunyang1988: 金币+1, 谢谢交流 2012-11-08 10:22:50
晶界的原子要让它动起来,否则无法进行relax
资料我没有,因为我也是听人说起过
6楼2012-11-06 08:39:27
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