MECHANICAL-PROPERTIES OF UNIDIRECTIONALLY ORIENTED SIC-WHISKER-REINFORCED SI3N4 FABRICATED BY EXTRUSION AND HOT-PRESSING

被引：75

作者：

GOTO, Y

TSUGE, A

机构：

[1] Research and Development Center, Toshiba Corporation, Kawasaki

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1993年 / 76卷 / 06期

关键词：

D O I：

10.1111/j.1151-2916.1993.tb03920.x

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：

SiC-whisker-reinforced Si3N4 was fabricated by extrusion and hot-pressing. A unidirectional alignment of the whiskers was achieved through sheet forming by extrusion. The degree of whisker orientation changed with the thickness of the green sheets. Unidirectionally oriented whiskers increased fracture strength and toughness compared to samples with more randomly oriented whiskers. Anisotropy of fracture strength was observed. Bridging by whiskers impeded crack propagation when the whisker orientation was perpendicular to the crack plane.

引用

页码：1420 / 1424

页数：5

共 22 条

[1]

BECHER PF, 1984, J AM CERAM SOC, V67, pC267, DOI 10.1111/j.1151-2916.1984.tb19694.x

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