Abstract

Based on a series of experiments, features of BiFeO3 phase formation in solid-phase synthesis and sintering without pressure were studied in detail. It was shown that processes caused by structural nonstoichiometry of objects play important role in the formation of real ceramic s. We discuss probable causes of the structural nonstoichiometry occurrence. They are connected both with a high stability of intermediate phases, and with the losses of oxygen resulting from partial reduction of elements with variable oxidation states. Conclusions about the possible ways to optimize the technology of materials based on BiFeO3 were taken.

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