Preparation of SiC from Bamboo Charcoal as Starting Material

Abstract

Recently, Bio-cast ceramics are paid attention because of preparing ceramics with microstructure characteristic of a plant, reducing cost and solving exhaustible resource problems. The ceramics derived from a plant are porous and are recognized as filter, catalyst carrier and others for the application. For bamboo, in particular, the growth is much faster in plants and the growth and development area extends in the world. So in this study, porous SiC ceramics derived from the bamboo charcoal as a source of carbon was produced. Bamboo charcoal was reacted with silicon by melting impregnation technique at 1450°C for 0.1 ∼ 5h under a flow of Ar gas (100ml/min). XRD analysis showed that as heating time increased, more SiC was synthesized, but a small amount of free silicon remained.