CRYSTAL MORPHOLOGY OF CYCLIC TWINS IN SYNTHETIC DIAMOND GRITS

被引：5

作者：

PIPKIN, NJ

DAVIES, GJ

机构：

[1] De Becrs Diamond Research Laboratory, Johannesburg

来源：

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1979年 / 40卷 / 03期

关键词：

D O I：

10.1080/01418617908234850

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Needle-shaped crystals found in samples of aynthetic diamond grits have boen examined by X-ray diffraction, optical methods and scanning electron microscopy. It 18 shown that thew crystals re cyclic twins with a morphology hitherto unreported. The crystal habit of theae cyclic twin crystals rssults from pronounced {100} faceting, characteristic of synthetic dinmond, in addition to {111} growth feces. thereby producing the needle-shaped crystals observed. This is different from the five-branched star cyclic twin crystal habit previouly found in both natural and synthetic diamond grits and in which only {111} facets am present. © 1979 Taylor & Francis Group, LLC.

引用

页码：435 / 443

页数：9