X-ray and neutron scattering by different dislocation ensembles

被引：16
作者：
Barabash, R
机构：
[1] Max Planck Inst Met Forsch, D-70569 Stuttgart, Germany
[2] Natl Tech Univ, Kiev, Ukraine
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2001年 / 309卷
关键词：
dislocations; X-ray and neutron scattering; rocking curves;
D O I：
10.1016/S0921-5093(00)01663-4
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Dislocations cause long-range displacement fields in the crystals. In bulk crystals they belong to so-called 2nd kind defects. The results of simulations of scattering intensity on several types of dislocation distributions in bulk crystals and in thin films are presented in the paper. The presence of the surface changes both the distortions and the regularities of scattering phenomena in thin films when compared to the bulk. Diffraction phenomena on misfit dislocations have some additional peculiarities compared with the bulk crystals. The input of each system of misfit dislocations into the broadening of the rocking curve depends on the angle between the diffraction vector and the direction of dislocation lines in the system. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：49 / 54
页数：6
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