| 摘要 |
A piezoelectric ceramic composition comprises a major component, <IMAGE> (where 0.01</=X</=0.40 and 0</= alpha </=1), and CuO contained therein as an additive in an amount of 0.05 to 2.5 wt % with respect to the weight of 1 mole of the major component. If required, this composition may contain 0.05 to 2.0 wt % of MnO2 with respect to the weight of 1 mole of the major component. The composition has excellent temperature characteristics in addition to excellent dielectric and piezoelectric characteristics suitable for use in various fields. |
