| 摘要 |
A piezoelectric ceramic composition contains main components represented by a general formula of [(Pb1-x-yCaxSry){Ti1-z(Zn1/2W1/2)z}O3], and x, y, and z satisfy 0≦̸x≦̸0.2 (preferably 0≦̸x≦̸0.15), 0≦̸y≦̸0.2 (preferably 0≦̸y≦̸0.1), 0.1≦̸x+y≦̸0.2, and 0.04≦̸z≦̸0.1. It is also preferable that the piezoelectric ceramic composition contains 0.05 weight part to 1.0 weight part of a Mn component calculated in terms of MnCO3 with respect to 100 weight parts of the main component. A piezoelectric part includes a piezoelectric ceramic element that is formed by the piezoelectric ceramic composition. It is thereby possible to realize a piezoelectric ceramic composition that can be fired at low temperature, that has a high Curie point Tc resistant to a reflow heating treatment on a lead-free solder, and that exhibits satisfactory piezoelectricity, and a piezoelectric part using this piezoelectric ceramic composition.
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