Physico-Chemical Bases of BaBiO3 Perovskite Synthesis

详细

The physico-chemical basis of optimal conditions for synthesis of BaBiO₃ oxide, free from impurities of BaBiO₃ and BaBiO_3−x oxygen-deficient phases, is given. The reduction of time of the melt contact with a crucible makes it possible to obtain BaBiO₃ samples minimum polluted by a crucible material. It was found that an abnormal behavior of BaBiO₃ in the course of long-time annealing in air at 450°C is caused by the interaction with CO₂.