Open AccessPHASE COMPOSITION AND IONIC CONDUCTANCE IN BaF2-BiF3 SYSTEM
Author(s) -
Jean-Maurice Réau,
Shuang Tian,
Paul Hagenmuller
Publication year - 1985
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.34.908
Subject(s) - polarizability , ionic bonding , solid solution , materials science , diffraction , conductance , phase (matter) , fluorite , ionic conductivity , electrical conductor , type (biology) , electrical impedance , crystallography , analytical chemistry (journal) , condensed matter physics , ion , chemistry , physics , optics , geology , composite material , electrode , quantum mechanics , paleontology , organic chemistry , chromatography , molecule , electrolyte , metallurgy
BaF2-BiF3 system has been studied by means of solid state reaction, X-ray powder diffraction technique and complex impedance measurement.We found two kinc's of Ba1xBixF2+x solid solution: fluorite-type (0s≈0.5(141/2)aF,cs≈2(31/2)aF). The crystallographic and electrical properties of the two solid solutions have been investigated and discussed.New F- ionic conductors Bi1-yBayF3-y (0.05≤r≤0.17) (y = 1-x) with tysonite-type structure have good electrical performances. This may be due to the higher polarizability.