Synthesis of Biomorphic SiC Ceramic from Bamboo Charcoal
Abstract:Biomorphic SiC ceramic was successfully synthesized by reaction sintering between bamboo charcoal and a Si/SiO2 powder mixture. The charcoal was converted into an entirely SiC ceramic inherited with the original bamboo structure. Samples were characterized according to their crystallinity, morphology, microstructures and pore structures. We found that various morphological SiC structures were formed in different parts of the charcoal which depended on the morphology of the textures. The length of SiC nanowires were up to micron size. They were grown in the 〈111〉 direction. The number of micropores in the converted biomorphic SiC was less than the original bamboo charcoal, but the pore diameter was larger.
Document Type: Research Article
Publication date: February 1, 2009
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