Pure perovskite phase Ba0.70Sr0.30TiO3 (BST) powders were successfully synthesized by molten-salt method in NaCl–KCl flux at a low temperature
of 850 ◦C for 2 h, which is 300 ◦C lower than that of the conventional solid-state reaction. This simple process involved mixing of the raw
materials and salts in a certain proportion. Subsequent calcining of the mixtures led to BST powders at 800–900 ◦C. XRD and SEM techniques
are used to characterize the phase and morphology of the fabricated BST powders, respectively.
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