ROLE OF INTERFACIAL DEBONDING AND MATRIX CRACKING IN THE EFFECTIVE THERMAL-DIFFUSIVITY OF ALUMINA-FIBER-REINFORCED CHEMICAL-VAPOR-INFILTRATED SILICON-CARBIDE MATRIX COMPOSITES

被引:19
作者
HASSELMAN, DPH [1 ]
VENKATESWARAN, A [1 ]
TAWIL, H [1 ]
机构
[1] SOC EUROPEAN PROPULS,CINQ CHEM LE HAILLAN,F-33165 ST MEDARD,FRANCE
关键词
COMPOSITES; FIBER REINFORCEMENT; CHEMICAL VAPOR DEPOSITION; THERMAL DIFFUSIVITY; CRACKING;
D O I
10.1111/j.1151-2916.1991.tb07150.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 thermal diffusivity of a biaxial weave alumina-fiber-reinforced chemical-vapor-deposited (CVD) SiC composite heated to 1500-degrees-C, which is above the manufacturing temperature, was found to exhibit an increase for heat flow parallel to the fiber plane, whereas a decrease was observed perpendicular to the fiber plane. The increase parallel to the fiber plane was thought to be due to the annealing of the fibers and matrix. The decrease perpendicular to the fiber plane was found to be the result of interfacial debonding and matrix cracking within the plane of the fibers.
引用
收藏
页码:1631 / 1634
页数:4
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