Log Angles: Characteristic Angles of Crystal Orientation Given by the Logarithm of Rotation Matrix ; 対数角:回転行列の対数が与える結晶方位に関する特性角度
Log Angles: Characteristic Angles of Crystal Orientation Given by the Logarithm of Rotation Matrix ; 対数角:回転行列の対数が与える結晶方位に関する特性角度
复制标题
对数角:由旋转矩阵的对数给出的晶体取向的特征角;对数角:由旋转矩阵的对数给出的与晶体取向相关的特征角;
DOI:
10.2320/jinstmet.j2014036
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
尾中 晋
中科院分区:
文献类型:
--
作者:
Hayashi Kunio;邦夫 林.;Osada Motoki;長田 礎.;Kurosu Yuki;悠基 黒須;Y. Miyajima;宮嶋陽司;Onaka Susumu;尾中 晋
A rotation matrix R with respect to a reference frame is used to describe certain crystal orientation. The logarithm of R, ln R is a skew symmetric tensor with three independent elements of real numbers. The goniometer-stage model in the present study shows that the three independent elements of ln R are the characteristic angles of R representing the rotation angles around coordinate axes. Different from various kinds of the Euler angles, the characteristic angles called the log angles are uniquely determined for certain R. [doi:10.2320/matertrans.M2015454]