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将不同配比的Ce F3,Li F和Ce O2混合物料放入马弗炉中进行高温熔融,然后急冷、研磨处理。采用X射线衍射(XRD)、TG-DSC对所得样品的组分、初晶温度、挥发损失进行分析和表征。结果表明:Li F的添加使Ce F3的晶格产生畸变,与此同时有少量新的物质生成;在实验中所选的最佳二元体系Ce F3,Li F物料质量配比为1#(85.5∶14.5),该样品可溶解5%的Ce O2,同时初晶温度最低为910℃,为氟化物熔盐体系Ce O2电解提供参考。
Different proportions of Ce F3, Li F and Ce O 2 were placed in a muffle furnace for melting at high temperature, then quenched and ground. The composition, the primary crystallization temperature and the volatilization loss of the obtained sample were analyzed and characterized by X-ray diffraction (XRD) and TG-DSC. The results show that the addition of LiF distorts the crystal lattice of Ce F3, and at the same time a small amount of new material is generated. The best binary system Ce F3 and Li F selected in the experiment is 1 # 85.5:14.5), the sample can dissolve 5% Ce O2, while the minimum primary crystallization temperature of 910 ℃, for fluoride molten salt system Ce O2 electrolysis provide a reference.