Phase development in Ba(Mg1/3Ta2/3)O3 via conventional and B-site precursor routes

Phase-formation stages in Ba(Mg1/3Ta2/3)O3, prepared by conventional and B-site precursor methods, were investigated and the results are compared. Appropriate powder mixtures were heat-treated at selected temperatures and characterized by X-ray diffraction (XRD) in order to examine the phase development. In the conventional route, monophasic perovskite, finally resulted at high temperatures, had several preliminary intermediate phases, whereas in the B-site precursor method the perovskite formed directly from the reactants. The perovskite formation using B-site precursors was completed at significantly lower temperatures.