METHOD FOR PRODUCING STRONTIUM BISMUTH TANTALATE FINE PARTICLE

摘要

Disclosed is a method for easily producing strontium bismuth tantalate fine particles exhibiting excellent uniformity in composition and particle size while having particularly high crystallinity. Specifically disclosed is a method for producing strontium bismuth tantalate fine particles which comprises, in the following order: a step for obtaining a molten material containing, in mol % in terms of oxides, 25-60% of SrO, 3-25% of Bi2O3, 3-25% of Ta2O5 and 15-60% of B2O3; a step for quickly cooling the molten material into an amorphous material; a step for precipitating a strontium bismuth tantalate crystal from the amorphous material; and a step for separating the strontium bismuth tantalate crystal from the thus-obtained crystallized precipitate.