THE ROLE OF STRUCTURAL LEDGES AS MISFIT-COMPENSATING DEFECTS - FCC-BCC INTERPHASE BOUNDARIES
THE ROLE OF STRUCTURAL LEDGES AS MISFIT-COMPENSATING DEFECTS - FCC-BCC INTERPHASE BOUNDARIES
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DOI：
10.1007/bf02649037
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发表时间：
1994-09-01
影响因子：
2.8
通讯作者：
VANDERMERWE, JH
中科院分区：
文献类型：
--
作者：
SHIFLET, GJ;VANDERMERWE, JH
一个充满活力的理由是结构壁架作为界面失配补偿缺陷，弹性的考虑。我们详细介绍了NW-x配置，其中的取向是由沿着[211]fcc和[110]bcc方向和{111}fcc和{110}bcc平面，分别密切匹配。特别突出的是结构壁架之间的梯田，在那里它示出了一个弹性松弛获得在特定的梯田长度的基础上原子匹配。正是这种弛豫使得阶梯界面在所有有意义的失配值下比平面界面更稳定。
An energetic justification is given for structural ledges as interfacial misfit compensating defects, based on elastic considerations. We detail the NW-x configuration in which the orientation is imposed by close matching along the [211]fcc and [110]bcc directions and {111}fcc and {110}bcc planes, respectively. Special prominence is given to the terrace between structural ledges, where it is shown that an elastic relaxation obtains at specific terrace lengths based on atomic matching. It is this relaxation that makes a stepped interface more stable than a planar one at all meaningful values of misfit.