Synthesis of silicon carbide whiskers from substituted silicon alkoxides and rayon fibres

被引：7

作者：

Raman, V ^{[1
]}

Parashar, VK ^{[1
]}

Dhakate, SR ^{[1
]}

机构：

[1] Natl Phys Lab, Engn Mat Div, Carbon Technol Unit, New Delhi 110012, India

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2002年 / 25卷 / 02期

关键词：

silicon carbide whiskers; sol-gel; substituted silicon alkoxides; rayon fibres; carbothermal reduction;

D O I：

10.1023/A:1019984918105

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：

Silicon carbide whiskers (SiCW) were synthesized through sol-gel process by impregnating the rayon fibres with sols of methyltriethoxysilane (MTEOS), phenyltriethoxysilane (PTEOS) and dimethyldiethoxysilane (DMDEOS) and pyrolyzing the impregnated rayon fibres at 1400degreesC in argon atmosphere. The SiCW synthesized through this method were needle like, straight and their aspect ratio was found to be greater than 100 except in the case where DMDEOS was used as silica source.

引用

页码：175 / 179

页数：5

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