Fabrication of short C fiber-reinforced SiC composites by spark plasma sintering

被引：27
作者：
Ding, Yusheng
Dong, Shaoming [1 ]
Huang, Zhengren
Jiang, Dongliang
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, Res Ctr Struct Ceram Engn, Shanghai 200050, Peoples R China
[2] Chinese Acad Sci, Inst Grad, Beijing 100039, Peoples R China
[3] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai 20050, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2007年 / 33卷 / 01期
关键词：
sintering; fiber; short; C-f/SiC; spark plasma; thermal residual stress;
D O I：
10.1016/j.ceramint.2005.08.004
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：
Short carbon fiber reinforced SiC matrix composites were fabricated by spark plasma sintering. Density and mechanical properties of the composites increased continuously at increasing sintering temperature and constant pressure. Cracks in the composite matrix resulted from high thermal residual stresses generated during the cooling process from the sintering temperature due to the thermal expansion coefficient mismatch between fiber and matrix. The properties of the composites were lower than those of monolithic SiC ceramics obtained with the same processing technique as the composites. Fibers provided noncatastrophic fracture behavior of the composites as evidenced by the stress-displacement curves and fracture surface of the composites. (c) 2005 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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收藏
页码：101 / 105
页数：5
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