首页|Comparative Study of Biomorphic Silicon/Silicon Carbide Ceramic from Birch and Compressed Birch

Comparative Study of Biomorphic Silicon/Silicon Carbide Ceramic from Birch and Compressed Birch

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  • NETL
  • NSTL
  • Trans Tech Publications Ltd
Wood compression process was innovatively introduced as a pre-treatment method to birch into the fabrication of biomorphic silicon/silicon carbide (Si/SiC) ceramic with high density. Firstly, birch blocks were compressed to the density in the range of 0.85-1.00g/cm~3. Secondly, both birch blocks and compressed birch blocks were carbonized at 1200℃ to get carbon templates. Lastly, carbon templates were infiltrated with liquid silicon to obtain biomorphic Si/SiC ceramics. The effect of compression process on the density and microstructure of both carbon template and ceramic was investigated. The results show that the maxium density of biomorphic Si/SiC ceramic from compressed birch is 3.01g/cm~3, whereas the density of the ceramic from birch is only 2.80-2.89g/cm~3. So the compression process was an effective method to increase the density of biomorphic Si/SiC ceramic.

wood compression processbiomorphic Si/SiC ceramic

Zili Yan、Jie Liu、Jianchun Zhang、Tian Ma、Zhengcao Li

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School of Materials Science & Technology, Beijing University of Chemical Technology, Beijing 100029, China The Quartermaster Research Institute of the General Logistics Department of the PLA, Beijing 100082, China

School of Materials Science & Technology, Beijing University of Chemical Technology, Beijing 100029, China

The Quartermaster Research Institute of the General Logistics Department of the PLA, Beijing 100082, China

Department of Materials Science & Engineering, Tsinghua University, Beijing 100084, China

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2010

10.4028/www.scientific.net/KEM.434-435.609

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.434/435
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