Fabrication of laminated SiCw/SiC ceramic composites by CVI

被引：65
|
作者：
Xie, Yupeng [1 ]
Cheng, Laifei [1 ]
Li, Liangjun [1 ]
Mei, Hui [1 ]
Zhang, Litong [1 ]
机构：
[1] Northwestern Polytech Univ, Sci Technol Thermostruct Composites Mat Lab, Xian 710072, Shaanxi, Peoples R China
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2013年 / 33卷 / 10期
关键词：
Chemical vapor infiltration; Tape casting; Laminated structure; SiC whisker; MECHANICAL-PROPERTIES; MATRIX COMPOSITES; OXIDATION; SI3N4; MICROSTRUCTURE; BEHAVIOR; FRACTURE;
D O I：
10.1016/j.jeurceramsoc.2013.02.019
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：
Laminated SiCw/SiC ceramic composites were prepared by chemical vapor infiltration (CVI) and tape casting, and the advantages of this method were investigated. The results showed that this method can increase strength of the composites by reducing the damage of SIC whiskers and increasing their volume fraction, and increase toughness of the composites by controlling the interfacial bonding between whiskers and matrix and inter-laminar bonding between layers. The volume fraction of whiskers reached 40 vol.%, and the flexural strength, tensile strength and fracture toughness were 315 MPa, 158 MPa and 8.02 MPa m(1/2), respectively. Interfacial and interlaminar crack deflection and bridging were observed. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1701 / 1706
页数：6
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