| 摘要 |
<p>A process for producing a piezoelectric oxide having a composition expressed by the compositional formulas (A, B, C) (D, E, F) O3, where each of A, B, C, D, E, and F represents one or more metal elements. The composition is determined so as to satisfy the conditions (1), (2), (3), and (4), 0.98≤TFP≤1.01,TFADO3>1.0,TFBEO3<1.0,andTFBEO3<TFCFO3<TFADO3, where TF(P) is the tolerance factor of the compound expressed by the compositional formula (A, B, C) (D, E, F) O3, and TF(ADO3), TF(BEO3), and TF(CFO3) are respectively the tolerance factors of the compounds expressed by the compositional formulas ADO3, BEO3, and CFO3.
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