One-step synthesis and densification of nanostructured TiSi2-SiC composite from mechanically activated (TiC+3Si) powders by high-frequency-induced heated combustion

Abstract

Dense nanostructured TiSi2-SiC Composite was synthesized by high-frequency-induced heated combustion synthesis method within 1 min in one step from TiC and 3Si powders. Simultaneous combustion synthesis and densification were accomplished under the combined effects of an induced current and mechanical pressure. Highly dense TiSi2-SiC with relative density of up to 99% was produced under the simultaneous application of a 60 MPa pressure and the induced current. The mechanical properties of the composite were investigated. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.