DISLOCATION GENERATION DUE TO DIFFERENCES BETWEEN THE COEFFICIENTS OF THERMAL-EXPANSION

被引:985
作者
ARSENAULT, RJ [1 ]
SHI, N [1 ]
机构
[1] UNIV MARYLAND,MET MAT LAB,COLLEGE PK,MD 20742
来源
MATERIALS SCIENCE AND ENGINEERING | 1986年 / 81卷 / 1-2期
关键词
CRYSTALLOGRAPHY - Mathematical Models - CRYSTALS - Dislocations - MICROSCOPIC EXAMINATION - Transmission Electron Microscopy - SILICON CARBIDE - Thermal Expansion;
D O I
10.1016/0025-5416(86)90261-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The purpose of this investigation is to determine whether dislocation generation occurs at the Al-SiC interface on cooling a composite from annealing temperatures. An in situ transmission electron microscopy investigation was undertaken of dislocation generation at the inclusions due to the differential thermal contraction. A simple model based on prismatic punching was developed to account for the relative dislocation density due to the differential thermal contraction.
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页码:175 / 187
页数:13
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