title: Effect of Bismuth Oxide on the Microstructure and Electrical Conductivity of Yttria Stabilized Zirconia.
abstract: Bismuth oxide (Bi2O3)-doped yttria-stabilized zirconia (YSZ) were prepared via the solid state reaction method. X-ray diffraction and electron diffraction spectroscopy results indicate that doping with 2 mol% Bi2O3 and adding 10 mol% yttria result in a stable zirconia cubic phase. Adding Bi2O3 as a dopant increases the density of zirconia to above 96%, while reducing its normal sintering temperature by approximately 250°C. Moreover, electrical impedance analyses show that adding Bi2O3 enhances the conductivity of zirconia, improving its capability as a solid electrolyte for intermediate or even lower temperatures.
authors.affiliation: State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China. llwdahai@zju.edu.cn.
authors.forename: Liwei
authors.initials: L
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China. zhouzhengaa@zju.edu.cn.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zhou
authors.affiliation: Center of Electron Microscopy, Zhejiang University, Hangzhou 310027, China. hetian@zju.edu.cn.
authors.forename: He
authors.initials: H
authors.lastname: Tian
authors.affiliation: State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China. jx_li@zju.edu.cn.
authors.forename: Jixue
authors.initials: J
authors.lastname: Li
keywords: YSZ; bismuth oxide; ionic conductivity; solid electrolyte