冰晶石熔体的电导性质  

Electrical conductivity of cryolite melts

作　　者：郭慧鹏[1] 叶亚平[1] 李丽芬[2] 周国治[2] 

机构地区：[1]北京科技大学应用科学学院,北京100083 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《北京科技大学学报》2008年第9期1037-1040,共4页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.58974004)

摘　　要：采用电化学交流阻抗谱法研究了Na3AlF6(冰晶石)-Al2O3熔盐体系的总电导以及CaO加入对其电性能的影响.根据测得的阻抗谱,提出了等效电路,用EvolCRT电化学软件对阻抗数据进行了拟合.获得了Na3AlF6-Al2O3体系电导率随温度及Al2O3浓度变化的数学关系.CaO加入使得体系电导率增加.The total electric conductivity of Na3AlF6-Al2O3 slag and the effect of added CaO on the electric conductivity of the slag were investigated by the Ac impedance method of electrochemistry. Equivalent circuits were proposed according to the measured impedance spectra. EvolCRT electrochemical software was used to simulate the impedance data. The correlations of conductivity to slag composition and temperature were studied. The addition of CaO increases the electric conductivity of the system.

关 键 词：冰晶石熔体 交流阻抗谱 电导率 氧化钙 

分 类 号：TF821[冶金工程—有色金属冶金]