Synthesis of Silicon Carbide Whiskers from Substituted Silicon Alkoxides and Rayon Fibres

被引：0
作者：
V. Raman
V.K. Parashar
S.R. Dhakate
机构：
[1] National Physical Laboratory,Carbon Technology Unit, Engineering Materials Division
来源：
Journal of Sol-Gel Science and Technology | 2002年 / 25卷
关键词：
silicon carbide whiskers; sol-gel; substituted silicon alkoxides; rayon fibres; carbothermal reduction;
D O I：
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中图分类号：
学科分类号：
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 1400°C 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.
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页码：175 / 179
页数：4
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