THERMAL-EXPANSION OF LAMINATED, WOVEN, CONTINUOUS CERAMIC FIBER CHEMICAL-VAPOR-INFILTRATED SILICON-CARBIDE MATRIX COMPOSITES

被引：15

作者：

ECKEL, AJ ^{[1
]}

BRADT, RC ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT MAT SCI & ENGN,SEATTLE,WA 98195

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 05期

关键词：

composites; fibers; laminates; silicon carbide; thermal expansion;

D O I：

10.1111/j.1151-2916.1990.tb05201.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：

Thermal expansions of three two‐dimensional laminate, continuous fiber/chemical‐vapor‐infiltrated silicon carbide matrix composites reinforced with either FP‐Alumina (alumina), Nextel (mullite), or Nicalon (Si‐C‐O‐N) fibers are reported. Experimental thermal expansion coefficients parallel to a primary fiber orientation were comparable to values calculated by the conventional rule‐of‐mixtures formula, except for the alumina fiber composite. Hysteriesis effects were also observed during repeated thermal cycling of that composite. Those features were attributed to reoccurring fiber/matrix separation related to the micromechanical stresses generated during temperature changes and caused by the large thermal expansion mismatch between the alumina fibers and the silicon carbide matrix. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：1334 / 1338

页数：5

共 19 条

[1]

CARPENTER HW, 1984, ADV HIGH PRESSURE O2, P38

[2]

Chawla KK., 1987, COMPOSITE MATERIALS, P189

[3]

ECKEL AJ, 1987, THESIS U WASHINGTON

[4]

GEIGER AL, 1989, ADV MATER PROCESS, V136, P23