A TRANSMISSION ELECTRON-MICROSCOPY STUDY OF A DISLOCATION DIPOLE AND DISLOCATION PAIRS IN AN AL70CO15NI15 DECAGONAL QUASI-CRYSTAL

被引：2

作者：

YAN, YF ^{[1
]}

WANG, RH ^{[1
]}

机构：

[1] CHINESE ACAD SCI,BEIJING LAB ELECTRON MICROSCOPY,BEIJING 100080,PEOPLES R CHINA

来源：

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1993年 / 68卷 / 05期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1080/01418619308219384

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A dislocation dipole in Al70Co15Ni15 decagonal quasicrystal has been observed, for the first time, by means of transmission electron microscopy and compared with dislocation pairs. Diffraction contrast analysis shows that the Burgers vectors of the two dislocations of which the dislocation dipole and the dislocation pairs consist are along the tenfold axis. One can easily differentiate a dislocation pair from a dislocation dipole by using the defocused convergent-beam electron diffraction technique.

引用

页码：1033 / 1038

页数：6

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