EXPERIMENTAL-OBSERVATIONS OF SMALL-ANGLE GRAIN-BOUNDARIES IN THE AL70CO15NI15 DECAGONAL QUASI-CRYSTAL

被引:15
|
作者
YAN, YF [1 ]
WANG, RH [1 ]
机构
[1] ACAD SINICA,BEIJING LAB ELECTRON MICROSCOPY,BEIJING 100080,PEOPLES R CHINA
关键词
D O I
10.1080/09500839208219041
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
According to the characteristics of the dislocations of which the small-angle grain boundaries consist, three kinds of small-angle grain boundary have been observed in annealed Al70Co15Ni15 decagonal phase for the first time by transmission electron microscopy: a tilt boundary consisting of an edge-dislocation wall; a twist boundary consisting of parallel screw-dislocation pairs; a small-angle grain boundary consisting of a dislocation network.
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页码:253 / 258
页数:6
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