TRANSMISSION ELECTRON-MICROSCOPY INSITU OBSERVATION OF CRACK-PROPAGATION IN SINTERED ALUMINA

被引：29

作者：

IKUHARA, Y ^{[1
]}

SUZUKI, T ^{[1
]}

KUBO, Y ^{[1
]}

机构：

[1] JAPAN FINE CERAM CTR,NAGOYA 456,JAPAN

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1992年 / 66卷 / 06期

关键词：

D O I：

10.1080/09500839208219053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crack propagation behaviour in sintered alumina has been observed by in situ straining experiments in a transmission electron microscope at 800-degrees-C. Dislocations were generated at the crack tips, and the strain contour line around the crack tips was found to oscillate periodically during crack propagation. Crack deflection through grain boundaries occurred after a fan-shaped strain appeared when the crack intersected the grain boundary.

引用

页码：323 / 327

页数：5

共 9 条

[1] CRACK-PROPAGATION IN MGO DURING INSITU DEFORMATION IN THE HIGH-VOLTAGE ELECTRON-MICROSCOPE [J].