Vickers indentation crack in superplastically compressive deformed silicon nitride with highly anisotropic microstructure

被引：2
|
作者：
Kondo, N [1 ]
Suzuki, Y [1 ]
Ohji, T [1 ]
机构：
[1] Natl Ind Res Inst Nagoya, Kita Ku, Nagoya, Aichi 4628510, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1999年 / 107卷 / 03期
关键词：
silicon nitride; superplastic deformation; Vickers indentation; Cone (Hertzian) crack; median-radial (Vickers) crack;
D O I：
10.2109/jcersj.107.300
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Vickers indentation in the silicon nitride, which was produced by superplastic compressive deformation, was conducted. The specimen had a highly anisotropic microstructure, where rod-shaped grains oriented almost two-dimensionally. The Vickers crack introduced in such microstructure exhibited an unusual crack system with a Cone-Vickers complex shape. Three dimensional crack system was estimated on the basis of the observation, and the crack evolution process was discussed.
引用
收藏
页码：300 / 302
页数：3
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