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Method of manufacturing a sintered (Bi,Na)TiO3 piezoelectric body
Method of manufacturing a sintered (Bi,Na)TiO3 piezoelectric body
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机译:(Bi,Na)TiO 3烧结压电体的制造方法
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摘要
A piezoelectric body containing (Bi1/2Na1/2)TiO3 as a main component which is obtained by forming and sintering powders. A heterogeneous phase other than (Bi1/2Na1/2)TiO3 system perovskite phase in the powders has a peak ratio relative to the strongest peak of the perovskite phase of 5% or lower as determined by powder X-ray diffraction. As a result, the frequency of producing dielectric breakdown in a sintered piezoelectric body during polarization can be dramatically reduced to 0.1 to 2%. The manufacturing yield can be increased and manufacturing cost can be reduced and the reliability of products manufactured therefrom can be improved.
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