Liquid Reaction during Synthesis of Ti<SUB>3</SUB>SiC<SUB>2</SUB> through Pulse Discharge Sintering Ti/Si/TiC Mixed Powders

Abstract

To understand the synthesis mechanism of Ti 3 SiC 2 through pulse discharge sintering Ti/Si/TiC mixed powders, the shrinkage displacement curves were studied during sintering process. Liquid reaction above Ti-Ti 5 Si 3 eutectic temperature was revealed. The Ti-Si liquid reaction was found not only to have assisted the Ti 3 SiC 2 phase formation but also accelerated its densification. Ti 8 C 5 was found to be the intermediate phase during this liquid reaction stage.