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用循环伏安法、恒电位电解断电后的电位—时间曲线、电位阶跃下的电流—时间曲线以及Ｘ—射线衍射法研究了在ＫＣｌ－ＨｏＣｌ３熔体中Ｈｏ３＋在铜电极上还原形成钬铜合金的电极过程。Ｈｏ３＋在铜电极还原时，在形成金属间化合物ＨｏＣｕ５等后才析出纯金属钬。测定了ＨｏＣｕ５四种金属间化合物的生成自由能和Ｈｏ原子在ＨｏＣｕ５中的扩散系数及扩散活化能
The cyclic voltammetry, the potential-time curve after potentiostatic electrolysis, the current-time curve under potentiometric step and the X-ray diffraction method were used to study the reduction of Ho3 + on the copper electrode in KCl-HoCl3 melt to form holmium Copper alloy electrode process. Ho3 + copper electrode reduction, the formation of intermetallic compound HoCu5 after pure metal holmium precipitation. The free energy of formation of four intermetallic compounds of HoCu5 and the diffusion coefficient and diffusion activation energy of Ho atoms in HoCu5