CORRELATION OF DEFECT STRUCTURE AND IONIC CONDUCTIVITY IN FLUORITE SOLID SOLUTIONS IN THE PSEUDO-BINARY SYSTEM Bi2O3-YNbO4

摘要：

Structure and conductivity are investigated in the pseudo-binary system Bi2O3-YNbO4 in compositions of general formula (Bi2O3)1-x(YNbO4)x using a.c. impedance spectroscopy and X-ray and neutron powder diffraction. A cubic/pseudo-cubic solid solution is observed in bismuth rich compositions. In the solid solution region, the oxide ion distribution exhibits both compositional and thermal dependence, which can be correlated with changes in the activation energy for total conductivity and non-linear behaviour in the thermal expansion of cubic lattice parameter.

作者: XI LIU ISAAC ABRAHAMS MARCIN HOLDYNSKI FRANCISZEK KROK STEPHEN HULL

作者单位: Centre for Materials Research, School of Biological and Chemical Sciences, Queen Mary,University of Faculty of Physics, Warsaw University of Technology, ul. Koszykowa 75, 00-662,Warsaw, Poland ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom

会议类型: 国际会议

会议名称: The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)

会议地点: 武汉

会议语种:英文

页码: 446-454

在线出版日期: 2010-05-02（万方平台首次上网日期，不代表论文的发表时间）