Preparation of Ti_3SiC_2 powders by the molten salt method

摘要

Ti_3SiC_2 powders were successfully obtained by the molten salt method using Nacl as the flux. The influences of synthetic temperatures and flux/powders weight ratio on the phase and morphology of Ti_3SiC_2 powders were investigated. The results indicated that the synthetic temperature of Ti_3SiC_2 was about 150 ℃ lower than that reported by other methods. The Ti_3SiC_2 powders obtained by the molten salt method at 1200 ℃ were uniform and the particle size was about 1-2 μm. The content of Ti_3SiC_2 increased as flux/powders ratio increased to 1:1 while the further increment of the ratio made the content decreases obviously.