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在熔融CaCl2体系中,以二氧化钛和氧化铬的混合物为阴极,石墨为阳极,在电解温度900℃,槽电压2.8 V条件下进行电解,研究了熔盐电解金属氧化物直接制备钛铬合金的可行性。采用SEM,EDS,XRD等方法对电解还原产物进行了分析,结果表明,二氧化钛和氧化铬的混合物被还原为TiCr2合金,组成符合设计配比。混合氧化物的还原经历了优先生成金属Cr到形成TiCr2的合金化历程。
In the molten CaCl2 system, the mixture of titanium dioxide and chromium oxide was used as the cathode and graphite was used as the anode. Electrolysis was carried out at electrolysis temperature of 900 ℃ and bath voltage of 2.8 V. The feasibility of direct preparation of titanium-chromium alloy by molten salt electrolysis of metal oxide was studied Sex. The electrolysis reduction products were analyzed by SEM, EDS and XRD. The results showed that the mixture of titanium dioxide and chromium oxide was reduced to TiCr2 alloy and the composition was in accordance with the design ratio. The reduction of the mixed oxide underwent the alloying process of preferentially producing metal Cr to form TiCr2.