PREPARATION AND PROPERTIES OF NON-CIRCULAR CROSS-SECTION SiC FIBERS FROM A PRECERAMIC POLYMER

被引：0

作者：

Wang Yingde ^{[1
]}

Liu Xuguang ^{[1
]}

Wanglei ^{[1
]}

Lan Xinyan ^{[1
]}

Xue Jingen ^{[1
]}

Jiang Yonggang ^{[1
]}

Zhong Wenli ^{[1
]}

机构：

[1] Natl Univ Def Technol, State Key Lab Adv Ceram Fibres & Composites, Coll Aerosp & Mat Engn, Changsha, Hunan, Peoples R China

来源：

ADVANCES IN POLYMER DERIVED CERAMICS AND COMPOSITES | 2010年 / 213卷

关键词：

SILICON-CARBIDE FIBERS;

D O I：

暂无

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：

Preceramic polymer SiC fibres are usually circular in cross section. Polycarbosilane(PCS)-based fibres are melt spun and extruded into a wide variety of non-circular shapes. The trilobal, C-shaped, hollow, ribbonlike, pentagonal and swirl-shaped PCS fibres were prepared. These non-circular fibres were cured and pyrolyzed at the same conditions as the circular SiC fibres and the tensile strength, microstructure, electromagnetic properties and reverberation attenuation to microwave of the non-circular fibres were compared to that of circular SiC fibres. Results showed that non-circular SiC fibres have a higher tensile strength than that of the circular SiC fibres and exhibit an excellent microwave-absorbing property.

引用

页码：121 / 126

页数：6

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