Silicon nitride matrix composites with unidirectional silicon carbide whisker reinforcement

被引：17

作者：

Go, P ^{[1
]}

Sung, CM ^{[1
]}

Kostetsky, JJ ^{[1
]}

Vasilos, T ^{[1
]}

机构：

[1] Univ Massachusetts, Dept Chem & Nucl Engn, Lowell, MA 01854 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2002年 / 37卷 / 12期

关键词：

D O I：

10.1023/A:1015420430553

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SiC whisker reinforced Si3N4 was fabricated by fiber extrusion and hot pressing. SiC whiskers were unidirectionally oriented in a carrier fiber. The fibers containing the oriented whiskers were hot pressed in Si3N4 powder to form a SiCw/Si3N4 composite with approximately 5 volume% whiskers. SEM micrographs were image processed to quantify whisker orientations in the extruded fiber and the composite. Oriented whiskers contributed to nominal increase in fracture strength over monolithic samples before and after thermal shock testing from 500, 600 and 700degreesC. (C) 2002 Kluwer Academic Publishers.

引用

页码：2587 / 2590

页数：4

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