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Bismuth iron oxide powder, method for producing the same, dielectric ceramics, piezoelectric element, liquid discharge head, and ultrasonic motor
Bismuth iron oxide powder, method for producing the same, dielectric ceramics, piezoelectric element, liquid discharge head, and ultrasonic motor
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机译:氧化铋铋粉末,其制造方法,介电陶瓷,压电元件,排液头和超声波马达
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摘要
Provided is a lead-free dielectric ceramics having a low leakage current value, and a bismuth iron oxide powder as a raw material thereof. The bismuth iron oxide powder includes at least: (A) grains including a bismuth iron oxide having a perovskite-type crystal structure; (B) grains including a bismuth iron oxide having a crystal structure classified to a space group Pbam; and (C) grains including a bismuth iron oxide or a bismuth oxide having a crystal structure that is classified to a space group 123. The dielectric ceramics are made of bismuth iron oxide in which the bismuth iron oxide crystals having the crystal structure classified to the space group Pbam are distributed at a grain boundary of crystal grains of the bismuth iron oxide crystals having the perovskite-type crystal structure.
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