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Synthesis of Biomorphic Silicon Carbide from Wood

Published online by Cambridge University Press:  01 February 2011

Kwok Cheung Li  and
Dickon H. L. Ng
Kwok Cheung Li
Affiliation:
kcli@phy.cuhk.edu.hk, The Chinese University of Hong Kong, Physics, Room 107, 1st Floor, Science Centre North Block,, The Chinese University of Hong Kong,, Hong Kong, Hong Kong, N/A, Hong Kong
Dickon H. L. Ng
Affiliation:
dng@phy.cuhk.edu.hk, The Chinese University of Hong Kong, Department of Physics, Room 107, 1st Floor, Science Centre North Block,, The Chinese University of Hong Kong,, Hong Kong, N/A, China, People's Republic of
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Abstract

We have successfully produced biomorphic SiC ceramics from silica-infiltrated wood samples of balsa (Ochroma pyramidale) and flame tree (Delonix regia). This conversion of wood sample to a structure of SiC was performed by a sol-gel technique and a carbothermal reduction process. The biomorphic products were confirmed containing β-SiC and their structures were replica of the original structures of the raw wood samples. The biomorphic products from the denser flame tree (C-SiC) had higher specific strength than that from the biomorphic product from balsa (SiC).

Keywords

biomimetic (assembly)ceramicstrength

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1094: Symposium DD – From Biological Materials to Biomimetic Material Synthesis , 2008 , 1094-DD07-20
Copyright
Copyright © Materials Research Society 2008

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