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	Purity of SiC powders fabricated by coat-mix
	Shi, Li-min ; Zhao, Hong-sheng ; Tang, Chun-he
	2010-10-12 ; 2010-10-12
关键词	silicon carbide powders coat-mix purity SILICON-CARBIDE POWDER CARBOTHERMAL REDUCTION CERAMICS Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Mining & Mineral Processing
中文摘要	Silicon carbide powders were synthesized by the coat-mix process, with phenolic resin and silicon powders as starting materials. The effects of synthetic conditions, including sintering temperature and the molar ratio of resin-derived carbon to silicon on the composition and the purity of the resultant powders were investigated. The results show that a higher sintering temperature and an appropriate molar ratio of resin-derived carbon to silicon are favorable for producing high purity silicon carbide powders. It is found that the silicon carbide content increases slightly with increasing the sintering temperature during the solid-solid reaction. The temperature gradient plays an important role on this trend. When the sintering temperature is raised up to 1500 degrees C, the formation of silicon carbide is based on the liquid-solid reaction, and high purity (99.8wt%) silicon carbide powders can easily be obtained. It can also be found that the optimum molar ratio of resin-derived carbon to silicon is 1:1.
语种	英语 ; 英语
出版者	INT JOURNAL MINERALS METALLURGY & MATERIALS, EDITORIAL DEPT ; BEIJING ; 30 XUEYUANLU, BEIJING 100083, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79360]
专题	清华大学
推荐引用方式 GB/T 7714	Shi, Li-min,Zhao, Hong-sheng,Tang, Chun-he. Purity of SiC powders fabricated by coat-mix[J],2010, 2010.
APA	Shi, Li-min,Zhao, Hong-sheng,&Tang, Chun-he.(2010).Purity of SiC powders fabricated by coat-mix..
MLA	Shi, Li-min,et al."Purity of SiC powders fabricated by coat-mix".(2010).

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