扭转
倾斜(摄像机)
晶界
边界(拓扑)
对称(几何)
几何学
平面的
齐次空间
凝聚态物理
结晶学
物理
材料科学
数学
数学分析
化学
微观结构
计算机科学
计算机图形学(图像)
标识
DOI:10.1107/s0021889809006979
摘要
Grain boundaries are frequently classified into tilt, twist and mixed-type boundaries. However, the classification (into tilt and twist) is not a dichotomy; due to crystal symmetries, some boundaries may be concurrently tilt and twist boundaries. Formal conditions for a planar homophase boundary between crystals with m 3 m symmetry to be a tilt as well as a twist boundary are determined, and a procedure for verification of whether a boundary has such dual character is given.
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