Jh. Xiang et al., Synthesis of Ti(C,N) ultrafine powders by carbothermal reduction of TiO2 derived from sol-gel process, J EUR CERAM, 20(7), 2000, pp. 933-938
Experimental results demonstrate that TiC1-xNx ultrafine powders can be syn
thesized by the sol-gel process. The factors influencing the powder synthes
izing process, such as temperature, C/Ti ratio in raw materials, holding ti
me and flow rate of nitrogen gas, are discussed. TiC0.5N0.5 powders with pa
rticle sizes less than 100 nm were produced at 1550 degrees C. The microhar
dness of hot-pressed TiC0.5N0.5 samples at 1750 degrees C was 19.6 GPa and
the relative density was 98.9%. (C) 2000 Elsevier Science Ltd. All rights r
eserved.