Preparation, Structure and Physicochemical Properties of La_0.95Bi_0.05Mn_1-yCu_yO_3+δ (у=0.1-0.4) and Composites with Bi₂O₃-Based Electrolytes

Abstract

was obtained using citrate-nitrate method. It was determined by X-ray diffraction analysis that the compounds have rhombohedral (space group R3C) or orthorhombic (space group Pbnm) structure, depending on the composition. Single-phase compounds are synthesized at у = 0.1; 0.2. The investigation using scanning electron microscope showed that the grain sizes for the samples sintered using different techniques are close to each other because of the high calcination temperature. For the sample with orthorhombic structure the phase transition into rhombohedral one was found around 390 °С by means of dilatometry.