Title of article :
Fluorite-related phases in the Bi2O3–SO3 system
Author/Authors :
Smirnov، نويسنده , , V.I and Ponomareva، نويسنده , , V.G and Yukhin، نويسنده , , Yu.M and Uvarov، نويسنده , , N.F، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2003
Abstract :
An investigation of the Bi2O3−SO3 system with Bi2O3/SO3 ratio (3–12):1 was carried out using X-ray powder diffraction, infrared spectroscopy and impedance measurements. New bismuth oxysulfate phases Bi9SO16.5 (4.5:1) and Bi15SO25.5 (7.5:1) are found. Their structures are interpreted as fluorite-related superstructures with lattice parameters: a0=11.024 Å, c0=28.262 Å and a0=16.440 Å, c0=28.835 Å for Bi9SO16.5 and Bi15SO25.5, respectively. Some physical and chemical properties of these compounds were investigated including impedance and ionic conductivity.
Keywords :
?-Bi2O3 , Bismuth oxysulfate , Ionic conduction
Journal title :
Solid State Ionics
Journal title :
Solid State Ionics
