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Journal of Advanced Ceramics 2013, 2(2): 128-134 https://doi.org/10.1007/s40145-013-0050-4
Research Article | Open Access | Issue | Published: 04 June 2013

Preparation of SiC powders by carbothermal reduction with bamboo charcoal as renewable carbon source

Show Author's Information Xingzhong GUO,  Lin ZHU,  Wenyan LI,  Hui YANG*( )
Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
Keywords:
microstructure, X-ray diffraction (XRD), chemical synthesis, carbides
Cite this article:
GUO X, ZHU L, LI W, et al. Preparation of SiC powders by carbothermal reduction with bamboo charcoal as renewable carbon source. Journal of Advanced Ceramics, 2013, 2(2): 128-134. https://doi.org/10.1007/s40145-013-0050-4
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Abstract Full text About this article

Bamboo charcoal was expected to be a renewable carbon source for carbide materials in carbothermal reduction because of its superior characteristics. SiC powders with characteristic shapes were fabricated by carbothermal reduction with industrial silica sol and bamboo charcoal particles as silicon and carbon sources respectively, and the effects of reacting temperature and time on shape evolutions and properties of the as-prepared SiC powders were investigated. The silica sol/bamboo charcoal system was firstly transformed into SiO2/C system by the transition of silica sol and graphitization of bamboo charcoal, and the carbothermal reduction between SiO2 and C occurred at/above 1600 ℃. The characteristic shapes of SiC particles were transformed from string-beads-like to dumbbell-like and rod-like with the increase of reacting temperature. The prepared SiC powders are expected to become new raw material for silicon carbide ceramic composites.


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About this article

Preparation of SiC powders by carbothermal reduction with bamboo charcoal as renewable carbon source

Show Author's information Xingzhong GUO, Lin ZHU, Wenyan LI, Hui YANG*( )
Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

Abstract

Bamboo charcoal was expected to be a renewable carbon source for carbide materials in carbothermal reduction because of its superior characteristics. SiC powders with characteristic shapes were fabricated by carbothermal reduction with industrial silica sol and bamboo charcoal particles as silicon and carbon sources respectively, and the effects of reacting temperature and time on shape evolutions and properties of the as-prepared SiC powders were investigated. The silica sol/bamboo charcoal system was firstly transformed into SiO2/C system by the transition of silica sol and graphitization of bamboo charcoal, and the carbothermal reduction between SiO2 and C occurred at/above 1600 ℃. The characteristic shapes of SiC particles were transformed from string-beads-like to dumbbell-like and rod-like with the increase of reacting temperature. The prepared SiC powders are expected to become new raw material for silicon carbide ceramic composites.

Keywords: microstructure, X-ray diffraction (XRD), chemical synthesis, carbides

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Publication history
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Publication history

Received: 23 January 2013
Revised: 24 February 2013
Accepted: 27 February 2013
Published: 04 June 2013
Issue date: June 2013

Copyright

© The author(s) 2013

Acknowledgements

This work is supported by the High Science & Technique Brainstorm Project of Zhejiang Province of China (No. 2012C01032-1), Zhejiang Key Innovation Team Projects (No. 2009R50010), and Innovation Fund for Technology Based Firms (No. 12C26113303061).

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Open Access: This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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