Fracture energy of an aligned porous silicon nitride

被引：68

作者：

Inagaki, Y ^{[1
]}

Ohji, T

Kanzaki, S

Shigegaki, Y

机构：

[1] Fine Ceram Res Assoc, Synergy Ceram Lab, Nagoya, Aichi 4638687, Japan

[2] Natl Ind Res Inst Nagoya, Nagoya, Aichi 4638687, Japan

[3] Ishikawajima Harima Heavy Ind Co Ltd, Tokyo 1358733, Japan

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2000年 / 83卷 / 07期

关键词：

D O I：

10.1111/j.1151-2916.2000.tb01468.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：

The fracture energy of a porous silicon nitride with aligned fibrous grains was investigated, using a chevron-notched-beam technique. A crack was constrained to propagate normal to the grain alignment. The obtained fracture energy was similar to 500 J/m(2), which was similar to 7 times larger than that of a dense silicon nitride with randomly oriented fibrous grains. The large fracture energy was attributable primarily to the sliding resistance associated with interlocking grains.

引用

页码：1807 / 1809

页数：3

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