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Structure and electrical conductivity in the double rare-earth substituted system Bi 3 Y 1−x Yb x O 6 (0.00≤x≤1.00) is discussed. Structural characterization, by X-ray and neutron powder diffraction, confirms a full δ-Bi 2 O 3 type solid solution. This structure is maintained up to 850°C, with no visible evidence for phase separation over the timescale...
The di-substituted bismuth oxide based oxide ion conducting electrolyte system Bi 2.5+x Pb 0.5 YO 5.75+3x/2−δ (x=0, 1 and 2) has been investigated by X-ray powder diffraction, a.c. impedance spectroscopy, thermal analysis and X-ray photoelectron spectroscopy. δ-Bi 2 O 3 type phases are observed for all compositions studied and showed no obvious changes in structure...
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