Disclinations and disconnections in minerals and metals

被引：59
|
作者：
Hirth, John P.
Hirth, Greg [1 ]
Wang, Jian [2 ]
机构：
[1] Brown Univ, Dept Geol Sci, Providence, RI 02912 USA
[2] Univ Nebraska, Dept Mech & Mat Engn, Lincoln, NE 68588 USA
来源：
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2020年 / 117卷 / 01期
基金：
美国国家科学基金会;
关键词：
disconnection; disclination; metal; mineral; DEFORMATION TWINS; DISLOCATION; MECHANISM; DEFECTS; CREEP; MODEL; MIGRATION; SCIENCE; MANTLE; FIELD;
D O I：
10.1073/pnas.1915140117
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A different type of defect, the coherency disclination, is added to disclination types. Disconnections that include disclination content are considered. A criterion is suggested to distinguish disconnections with dislocation content from those with disclination content. Electron microscopy reveals unit disconnections in a low albite grain boundary, defects important in grain boundary sliding. Disconnections of varying step heights are displayed and shown to define both deformed and recovered structures.
引用
收藏
页码：196 / 204
页数：9
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