| 摘要 |
PURPOSE: To provide a piezoelectric material having satisfactory displacement performance under high compressive stress and excellent also in temp. stability. CONSTITUTION: This piezoelectric material is represented by the general formula (Pb1-3 X/2- Y/2 LaX) [(ZrZTi1- Z)1- YNbY]O3 [where 0.015<=X<=0.035, 0.025<=Y<=0.045, 0.53<=Z<=0.65 and (X+Y)<=0.060]. Since La and Nb have been substd. in a well- balanced state in such a range of the ratio of Zr to Ti as to ensure relatively satisfactory displacement performance, this piezoelectric material has satisfactory displacement performance under high compressive stress and is excellent also in temp. stability. |
