Kinetic investigation on the deposition of SiC from methyltrichlorosilane and hydrogen

Cuiying Lu, Laifei Cheng, Chunnian Zhao, Litong Zhang, Fang Ye

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Kinetics of chemical vapor deposition of SiC from MTS/H2 was investigated by magnetic suspension balance in a wide range of processing conditions. The results show that the deposition rate exhibits three deposition behaviours depending on temperature: at lower temperatures (T<1000°C), the deposition rate increases slowly with increasing temperature. The apparent active energy is from 130 to 222kJ/mol; at mediate temperatures (from 1000 to 1100°C) , the deposition rate increases drastically and the apparent active energy is from 100 to 130kJ/mol. However, at higher temperatures (T>1300"C), it decreases quickly. The deposition rate first rises with both of pressure and flow rate and then almost keeps constant. The transformation point lies in 200sccm and from 2 to 3kPa, respectively. Residence time is seen to have a strong positive effect on the deposition rate. Longer residence time corresponding to temperature changing from 1000'C to 900°C causes a decrease by 24 times in the deposition rate.

源语言英语
主期刊名Ceramic Materials and Components for Energy and Environmental Applications - 9th Int. Symp. on Ceramic Materials for Energy and Environmental Applications and the 4th Laser Ceramics Symp.
出版商American Ceramic Society
55-62
页数8
ISBN(印刷版)9780470408421
DOI
出版状态已出版 - 2010
活动Ceramic Materials and Components for Energy and Environmental Applications - 9th International Symposium on Ceramic Materials for Energy and Environmental Applications and the 4th Laser Ceramics Symposium - Shanghai, 中国
期限: 10 11月 200814 11月 2008

出版系列

姓名Ceramic Transactions
210
ISSN(印刷版)1042-1122

会议

会议Ceramic Materials and Components for Energy and Environmental Applications - 9th International Symposium on Ceramic Materials for Energy and Environmental Applications and the 4th Laser Ceramics Symposium
国家/地区中国
Shanghai
时期10/11/0814/11/08

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