Higher-order structural relationships between hematite and magnetite
Higher-order structural relationships between hematite and magnetite
复制标题
赤铁矿和磁铁矿之间的高阶结构关系
DOI：
10.1107/s0021889880012277
复制
发表时间：
1980
影响因子：
6.1
通讯作者：
L. Bursill
中科院分区：
文献类型：
--
作者：
By R. J. W. Withers;L. Bursill
矩阵变换技术的发展，以描述许多高阶的取向关系可能在赤铁矿和磁铁矿时，允许两个阶段的多重孪生。描述了各种接口的结构模型。该矩阵用于预测赤铁矿上磁铁矿400 M极图的预期峰值位置。与实验极图的比较[Becker，Heizmann & Baro（1977）. J.Appl.Cryst.10，77-78]表明，还需要允许赤铁矿的定向重结晶。这涉及到一种新的不同类型的取向关系，称为变换孪生。
Matrix-transformation techniques are developed to describe the numerous higher-order orientation relationships possible between hematite and magnetite when multiple twinning of both phases is allowed. Structural models for the various interfaces are described. The matrices are used to predict the peak positions expected for the 400M pole figure of magnetite on hematite. Comparison with the experimental pole figure [Becker, Heizmann & Baro (1977). J. Appl. Cryst. 10, 77–78] showed that it was also necessary to allow for oriented recrystallization of hematite. This involves a new distinct type of orientation relationship which is labelled transformation twinning.