Crack-healing behavior, high temperature and fatigue strength of SiC-reinforced silicon nitride composite

被引：45

作者：

Yao, F

Ando, K

Chu, MC

Sato, S

机构：

[1] Yokohama Natl Univ, Dept Energy & Safety Engn, Yokohama, Kanagawa 240, Japan

[2] NHK Spring Co Ltd, Kanazawa Ku, Yokohama, Kanagawa, Japan

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 2000年 / 19卷 / 12期

关键词：

D O I：

10.1023/A:1006715825737

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The cyclic fatigue and static fatigue strengths of the crack-healing ceramic SiC-reinforced SiN composite were assessed. The samples were hot-pressed containing 5 wt% yttria nd 3 wt% alumina. It was found that the healing condition has a large effect on fracture behavior. The best healing condition was found in the range 1200 to 1300 °C for one hour in air. The strength of the crack-healed samples were recovered completely. The crack-healed zone is sensitive to static fatigue at 1000 °C but not at 800 °C.

引用

页码：1081 / 1083

页数：3

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