PEROVSKITE-LIKE SOLID SOLUTION IN BaO—ScO—CuO—MoO SYSTEM

In the quasi-quaternary system BaO—ScO—CuO—MoO the possibility of obtaining phases with perovskite structure was investigated by varying the chemical composition, temperature and annealing atmosphere. A perovskite-like solid solution BaScCuMoO with tetragonal structure was obtained by the gel combustion method followed by annealing in argon atmosphere at 900°C. Low-enthalpy solid-phase transformations of BaScCuMoO at 810–820 and 960–975°C were found by DTA-TG.