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Vol. 25 No. 2 (2013): Vol 25 Issue 2

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Preparation of Pyrolytic Carbon Coating from Acetylene by Cold Wall Chemical Vapour Deposition Process

https://doi.org/10.14233/ajchem.2013.12974
Song Zhao
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, P.R. China ; Graduate University of the Chinese Academy of Sciences, Beijing 100039, P.R. China
Jingli Shi
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, P.R. China
Xinghai Wei
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, P.R. China
Xi Yan
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, P.R. China
Quangui Guo
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, P.R. China
Lang Liu
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, P.R. China

Corresponding Author(s) : Song Zhao

zsbird1223@yahoo.com.cn

Asian Journal of Chemistry, Vol. 25 No. 2 (2013): Vol 25 Issue 2

Abstract

Pyrolytic carbon coatings from acetylene were deposited on carbon monofilaments at different temperatures by cold wall chemical vapour deposition equipment. The morphology and microstructure of coatings were investigated by scanning electron microscopy and Raman spectroscopy. The results indicate that the increase of temperature from 1273 to 1773 K promotes the crystallization of pyrolytic carbon. Following the "particle-filler" model of carbon formation, it can be explained that the increase of temperature is famous for the elimination of amorphous carbon and crystallization of pyrolytic coating through the inhibition of formation of small linear hydrocarbons in the gas phase.

Keywords

Pyrolytic carbon Monofilaments Chemical vapour deposition
Zhao, S., Shi, J., Wei, X., Yan, X., Guo, Q., & Liu, L. (2012). Preparation of Pyrolytic Carbon Coating from Acetylene by Cold Wall Chemical Vapour Deposition Process. Asian Journal of Chemistry, 25(2), 871–873. https://doi.org/10.14233/ajchem.2013.12974
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