Linear regression analysis of oxygen ionic conductivity in co-doped electrolyte  

作　　者：谢光远 李箭 蒲健 郭密 

机构地区：[1]School of Materials and MetallurgyWuhan University of Science and Technology,Wuhan 430081,China [2]State Key Laboratory of Plastic Forming and Die and Mould TechnologyHuazhong University of Science and Technology, Wuhan 430074,China [3]State Key Laboratory of Plastic Forming and Die and Mould TechnologyHuazhong University of Science and Technology,Wuhan 430074,China

出　　处：《中国有色金属学会会刊：英文版》2006年第B02期861-864,共4页Transactions of Nonferrous Metals Society of China

基　　金：Project(2004ABA078) supported by the Natural Science Foundation of Hubei Province

摘　　要：A mathematical model for the estimation of oxygen-ion conductivity of doped ZrO2 and CeO2 electrolytes was established based on the assumptions that the electronic conduction and defect association can be neglected. A linear regression method was employed to determine the parameters in the model. This model was confirmed by the published conductivity data of the doped ZrO2 and CeO2 electrolytes. In addition, a series of compositions in Ce0.8Gd0.2-xMxO1.9-δsystem (M is the co-dopant) was prepared, their high temperature conductivity were measured. The model was further validated by the measured conductivity data.A mathematical model for the estimation of oxygen-ion conductivity of doped ZrO2 and CeO2 electrolytes was established based on the assumptions that the electronic conduction and defect association can be neglected. A linear regression method was employed to determine the parameters in the model. This model was confirmed by the published conductivity data of the doped ZrO2 and CeO2 electrolytes. In addition, a series of compositions in Ce0.8Gd0.2-xMxO1.9-δ system （M is the co-dopant） was prepared, their high temperature conductivity were measured. The model was further validated by the measured conductivity data.

关 键 词：共掺杂 电解质 氧离子传导率 线性回归分析 ZRO2 CEO2 

分 类 号：TF111.3[冶金工程—冶金物理化学]