Synthesis of silicon carbide mats using natural fibers

Abstract

Fabrication of beta-SiC mats using natural fibers was investigated by incorporating tetraethyl orthosilicate (TEOS) into the micro-tunnels of the Jute fibers and pyrolysing them at elevated temperatures. The silicon compound (TEOS) impregnated Jute mats were hydrolyzed by adding HCl or ammonia solution at room temperature and subsequently, the mats containing silicon hydroxide were pyrolysed in inert argon atmosphere at high temperatures to yield the beta-SiC mats. The fabricated mats are expected to be used for high temperature blankets and for making of laminated metal matrix composites and functionally gradient materials (FGMs). (C) 2002 Elsevier Science B.V All rights reserved.