Electrical conductivity of NaF-AlF_3-CaF_2-Al_2O_3-ZrO_2 molten salts  

NaF·AlF_3-Al_2O_3-CaF_2-ZrO_2熔盐体系的电导率(英文)

作　　者：包莫日根高娃[1,2] 王兆文[1] 高炳亮[1] 石忠宁[1] 胡宪伟[1] 于江玉[1] 

机构地区：[1]东北大学材料与冶金学院,沈阳110819 [2]内蒙古民族大学分析测试中心,通辽028000

出　　处：《Transactions of Nonferrous Metals Society of China》2013年第12期3788-3792,共5页中国有色金属学报（英文版）

基　　金：Project (2007CB210305) supported by the National Basic Research Program of China;Project (51074045) supported by the National Natural Science Foundation of China

摘　　要：The electrical conductivity of NaF-AlF3-CaF2-Al2O3-ZrO2 system was studied by a tube-type cell with fixed cell constant. The results show that the electrical conductivity of NaF-AlF3-3%Al2O3-3%CaF2-ZrO2 molten salt system decreases with increase of ZrO2 content in an interval of 0-5%. The increase of 1%ZrO2 results in a corresponding electrical conductivity decrease of 0.02 S/cm, and the equivalent conductivity increases with the increase of molar ratio of NaF to AlF3. When the temperature increases by 1 °C, the electrical conductivity increases by 0.004 S/cm. At last, the regression equations of electrical conductivity relative to temperature and ZrO2 are obtained by quadratic regression analysis.采用改进的固定电导池常数法研究 NaF-AlF3-CaF2-Al2O3-ZrO2熔盐体系的电导率。结果表明， NaF-AlF3-3%Al2O3-3%CaF2-ZrO2熔盐体系的电导率随着ZrO2含量（0~5%）的增加呈降低趋势。每增加1%氧化锆，电导率相应地降低约0.02 S/cm。温度每增加1°C时电导率相应降低约0.004 S/cm。随着NaF与AlF3摩尔比的增加，体系的电导率随之增加。最后采用二次回归正交设计方法，建立分子比相同时电解质的电导率与温度和氧化锆浓度关系的回归方程。

关 键 词：ZRO2 molten salt electrolysis electrical conductivity NAF ALF3 Al-Zr alloy 

分 类 号：TG146.2[一般工业技术—材料科学与工程]