The molten salt electrolytic method for the preparation of titanium carbide and silicon carbide composites has been subjected to a systematic investigation by experimental analyses and thermodynamic calculations. It has been confirmed that the electrolysis of high titanium slag in the presence of mixed graphite powders generates intermediates CaTiO 3 , Ti 2 O 3 , TiO, Fe 3 Si and objective carbonous products TiC/SiC. It has been furthermore found that the deoxidization process depends critically on a number of process parameters, namely, electrolyte composition, graphitic regime, reaction temperature, cell voltage and reaction time. After careful optimization of these parameters, TiC/SiC nanocomposites with particle sizes of 10 nm~174 nm has been produced by electrolysis of high titanium slag and graphite mixtures in molar ratio of 1:2 referred to Ti:C under 3.2 V at 900°C for 6 h in 1 mol%CaO-CaCl 2 -NaCl molten salt and with particle sizes of 12 nm~207 nm in 1 mol%CaO-CaCl 2 electrolyte.

中文翻译：

---

高钛渣在熔盐中电解合成TiC/SiC纳米复合材料

通过实验分析和热力学计算，对熔盐电解法制备碳化钛和碳化硅复合材料进行了系统研究。已经证实，在混合石墨粉存在下电解高钛渣生成中间体CaTiO 3 、Ti 2 O 3 、TiO、Fe 3 Si和目标含碳产物TiC/SiC。此外还发现，脱氧过程主要取决于许多过程参数，即电解质组成、石墨状态、反应温度、电池电压和反应时间。在对这些参数进行仔细优化后，通过电解高钛渣和石墨的摩尔比为 1 的混合物，制备出粒径为 10 nm~174 nm 的 TiC/SiC 纳米复合材料：