|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||9th International Symposium on High Temperature Metallurgical Processing
||Controlled Synthesis of TiC Nanoparticles Using Solid Oxide Membrane Technology in Molten CaCl2
||Kai Zheng, Xingli Zou, Xionggang Lu, Shangshu Li, Yinshuai Wang, Zhongya Pang
|On-Site Speaker (Planned)
A new route was proposed for preparing TiC nanoparticles directly from TiO2/C precursor by using solid oxide membrane (SOM) technology in molten CaCl2. The TiO2/C pellet pressed under 8 MPa was used as the cathode, and an yttria-stabilized zirconia (YSZ) tube filled with carbon-saturated liquid tin was served as the anode to control the electrolysis process. The electrochemical process was performed at 1000 °C and 4 h. The characteristics of the phase composition and morphology of the electrolysis products were investigated. The results show that TiC nanoparticles can be obtained directly from TiO2/C mixture at 1000 °C 4.0 V and for 4 h in molten CaCl2, and the current efficiency is calculated to be 74.1%. The reaction pathway from TiO2/C to TiC during the electrodeoxidation process can be summarized as TiO2/C → Ti, CaTiO3, TiC, TixOy, C → TiC.