MICROSTRUCTURAL CHARACTERIZATION AND TENSILE BEHAVIOUR OF A 3D BRAIDED C/SiC COMPOSITE FABRICATED BY CHEMICAL VAPOUR INFILTRATION

被引：1

作者：

Wang, Yiqiang ^{[1
]}

Zhang, Litong ^{[1
]}

Cheng, Laifei ^{[1
]}

Ma, Junqiang ^{[1
]}

机构：

[1] NW Polytech Univ, Natl Key Lab Thermostruct Composite Mat, Xian 710072, Shaanxi, Peoples R China

来源：

ADVANCED COMPOSITES LETTERS | 2008年 / 17卷 / 04期

关键词：

Ceramic matrix composites; Fibre architecture; Microstructure; Tensile behaviour;

D O I：

暂无

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The microstructure of a 3D C/SiC composite was characterized and the tensile behaviour was investigated ill conjunction with acoustic emission (AE) technique. A computer model of the fibre architecture was generated for visualization and further stress analysis. The results show that the stress-strain curves exhibit mostly nonlinear behaviour with four distinguishable regions, which compare well with the AE characteristics. microstructural observations reveal the superficial matrix cavities and large inter-bundle pores due to the 3D braiding fibre architecture. The failed specimens show ragged fracture surfaces and extensive fibre pullout, as well as interfacial debonding.

引用

页码：125 / 130

页数：6

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