【摘要】 采用步冷曲线法测量了ScF₃-LiF熔盐的初晶温度，以等温饱和法测量了Sc₂O₃在ScF₃-LiF熔盐中的溶解度，研究了温度与ScF₃含量的影响。通过XRD探究了Sc₂O₃在ScF₃-LiF熔盐中的溶解原理。结果表明，ScF₃-LiF熔盐的初晶温度随ScF₃含量的增加而升高，添加Sc₂O₃会使初晶温度降低；Sc₂O₃在ScF₃-LiF熔盐中主要发生化学溶解，溶解平衡时间约为2 h,其溶解度随温度的升高及ScF₃含量的增大而增大。更多还原

【Abstract】 The liquidus temperature of ScF₃-LiF molten salt was measured by step cooling curve method.The solubility of Sc₂O₃ in ScF₃-LiF molten salt was measured by the isothermal saturation method, and the effects of temperature and ScF₃ content were studied.The dissolution mechanism of Sc₂O₃ in ScF₃-LiF molten salt was analyzed by X-ray diffraction.The results show that the liquidus temperature of ScF₃-LiF molten salt rises with the increase of ScF₃ content, while it decreases with the addition of Sc₂O₃.The dissolution of Sc₂O₃ in ScF₃-LiF molten salt is mainly chemical dissolution, the dissolution equilibrium time is about 2 h, and its solubility increases with the increase of temperature and ScF₃ content.更多还原