Title: Synthesis of silicon carbide from rice husk

Authors: V. Rodriguez-Lugo, E. Rubio, I. Gomez, L. Torres-Martinez, V.M. Castano

Addresses: Instituto de Fisica, Universidad Autonoma de Puebla, Apartado postal J-48 Puebla, Puebla 72520, Mexico. ' Centro de Física Aplicada y Tecnologia Avanzada, U.N.A.M., A.P. 1-1010, Queretaro, 76000, Mexico. ' CIDEMAC, FCQ-UANL, Monterrey, N.L., Mexico. ' CIDEMAC, FCQ-UANL, Monterrey, N.L., Mexico. ' Centro de Fisica Aplicada y Tecnologia Avanzada, U.N.A.M., A.P. 1-1010, Queretaro, 76000, Mexico '

Abstract: Mexican rice hulls were pyrolysed in an inert atmosphere to form silicon carbide. The first step was a preheating process; the next step was the synthesis of silicon carbide, by using an extremely simple system of heating. Scanning electron microscopy, X-ray diffraction and differential thermal analysis were used to characterize the product. The type of SiC obtained was the so-called b-silicon carbide, in the form of fibres.

Keywords: carbides; natural silica; rice husk; silica; synthesis; silicon carbide.

DOI: 10.1504/IJEP.2002.003734

International Journal of Environment and Pollution, 2002 Vol.18 No.4, pp.378 - 387

Published online: 22 Dec 2003 *

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