Oxygen release technique: Ba0.5Sr0.5(Co0.8Fe0.2)0.85Ta0.15O3-

The work is related to the development of novel oxygen release technique to obtain continuous phase diagrams of oxides with mixed ionic-electronic conductivity. Promising perovskite-like composition Ba0.5Sr0.5(Co0.8Fe0.2)0.85Ta0.15O3-δ (BSCFT15) was chosen as a sample. As-prepared samples of BSCFT15 was studied by means of X-Ray diffraction analysis and scanning electron microscopy. Continuous equilibrium phase «3-δ – lg pO2 – T» diagram...