Thermodynamic assessment of the bismuth-strontium-oxygen oxide system

摘要

The experimental data on the oxide portion of the Bi-Sr-O system have been reviewed, and an optimized thermo- dynamic description is presented. There are at least seven stable ternary oxide phases, two of which show considerable solid-solution ranges. At least two phases-δ-Bi_2O_3 and the rhombohedral β-phase-are good oxygen-ion conductors.