Abstract
α-Si3N4 particles coated with 10 and 25 vol% nano-sized TiN were prepared by coating the surface of the Si3N4 particles with TiO2, followed by nitridation. Coating by TiO2 was accomplished by dispersing α-Si3N4 powders (0.16 and 1.6 g l−1) in a solution of TiCl4,