Simultaneous synthesis and consolidation of a nanocrystalline TiSi2-SiC composite by pulsed current activated combustion

Simultaneous synthesis and consolidation of a nanocrystalline TiSi2-SiC composite by pulsed current activated combustion

A dense nanophase TiSi2-SiC composite was synthesized by a pulsed current activated combustion synthesis method within 2 minutes in one step from mechanically activated powders of TiC and Si. Simultaneous combustion synthesis and consolidation were accomplished under the combined effects of a pulsed current and mechanical pressure. Highly dense TiSi2-SiC with relative density of up to 97% was produced under simultaneous application of a 60MPa pressure and the pulsed current. The average grain size and mechanical properties of the composite were investigated.

A dense nanophase TiSi2-SiC composite was synthesized by a pulsed current activated combustion synthesis method within 2 minutes in one step from mechanically activated powders of TiC and Si. Simultaneous combustion synthesis and consolidation were accomplished under the combined effects of a pulsed current and mechanical pressure. Highly dense TiSi2-SiC with relative density of up to 97% was produced under simultaneous application of a 60MPa pressure and the pulsed current. The average grain size and mechanical properties of the composite were investigated.