Analysis of oxidation-assisted stress-rupture of continuous fiber-reinforced ceramic matrix composites at intermediate temperatures

被引：77

作者：

Lara-Curzio, E ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 1999年 / 30卷 / 04期

关键词：

ceramic-matrix composites (CMCs); carbonaceous fiber coatings; oxidation; stress rupture;

D O I：

10.1016/S1359-835X(98)00148-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model is presented to estimate the reliability and time-to-failure of an unidirectional continuous fiber-reinforced ceramic composite when subjected to stresses beyond the matrix cracking stress. The particular case of oxidation-assisted stress-rupture at intermediate temperatures is considered. The effects of stress and temperature on the reliability of the model composite are examined. Model predictions are presented for the specific case of CG-Nicalon(TM)/SiC CFCCs with carbonaceous fiber coatings. (C) 1999 Published by Elsevier Science Ltd.

引用

页码：549 / 554

页数：6

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