Abstract
A simple direct precipitation method has been developed for the synthesis of nanosized, homogeneous (Ba 1− x Sr x )TiO 3 [BST] powders from stable precursor solutions. By appropriate control of pH and temperature among other processing variables, single-phase (Ba 1− x Sr x )TiO 3 is obtained at temperatures less than 100 °C. The crystalline phase, particle size and morphology of the BST powders are examined by XRD and TEM. The stoichiometry of the (Ba 1− x Sr x )TiO 3 powder is discussed in relation to the mechanism of formation of the perovskite phase.
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