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

Abstract:

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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/cm3. Secondly, both birch blocks and compressed birch blocks were carbonized at 1200°C 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/cm3, whereas the density of the ceramic from birch is only 2.80-2.89g/cm3. So the compression process was an effective method to increase the density of biomorphic Si/SiC ceramic.

Info:

Periodical:

Key Engineering Materials (Volumes 434-435)

Edited by:

Wei Pan and Jianghong Gong

Pages:

609-612

DOI:

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

Citation:

Z. L. Yan et al., "Comparative Study of Biomorphic Silicon/Silicon Carbide Ceramic from Birch and Compressed Birch", Key Engineering Materials, Vols. 434-435, pp. 609-612, 2010

Online since:

March 2010

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Price:

$35.00

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