Si, Ti混合粉末の窒素ガス下における高温反応プロセス High-Temperature Reaction Process of Si-Ti Powder Mixtures under a Nitrogen Gas
In this work, high-temperature reaction process with gaseous nitrogen led Si and Ti powders, Si and titanium silicide powders or titanium silicide powders to two phase ceramic composites consisting of Si<SUB>3</SUB>N<SUB>4</SUB> (α-Si<SUB>3</SUB>N<SUB>4</SUB> and β-Si<SUB>3</SUB>N<SUB>4</SUB>) and TiN. The results of X-ray diffraction analysis showed there are remarkable differences in the ratio of α-Si<SUB>3</SUB>N<SUB>4</SUB>/β-Si<SUB>3</SUB>N<SUB>4</SUB> between the specimen used elemental powders and that used intermetalic powders. That is mainly caused by a difference in the starting temperature and reactivity of silicon nitridation. Thus, it is promising for synthesis of Si<SUB>3</SUB>N<SUB>4</SUB>-TiN composite powders to use intermetalic powders.
粉体および粉末冶金 43(3), 336-340, 1996-03-15
Japan Society of Powder and Powder Metallurgy