The Synthesis of TiC Powders by Carbothermal Reduction Method in Vacuum

摘要

The TiC powders were synthesized by carbothermal reduction of TiO_2 in vacuum using the titania and carbon black as raw materials. The molar ratio of C to TiO_2 was 3:1. The crystalline phase, microstructure and morphology of the obtained samples were investigated by XRD and SEM. The results show that single-phase and well-crystallized TiC powders were obtained at 1300°C for 1h when the system pressure was 20 Pa. The particle morphologies are composed of fine grains about 200 nm.