| 摘要 |
PROBLEM TO BE SOLVED: To obtain a piezoelectric material which has high Curie point and in which high displacement appears with low driving voltage. SOLUTION: The piezoelectric material essentially comprises a multiple oxide expressed by [Pb 1-x1-x2-α(x1-x2)}, A1x1, A2x2] Tiy, Zrz)(1-β(x1-x2)-γ), (Y0.5, Nb0.5)γ} 03 and satisfying y+z=1, 1.15<z/y<1.30, 0<γ<0.1, A1=Ce or La, A2=K, 0.02<=x1<=0.08, 0<=x2<=0.05, wherein 0.02<=x1+x2<=0.1 and x1>=x2, and α=0, β=0.25 or α=0.5, β=0 or A1=Sr, A2=Ba, 0.03<=x1<=0.05, 0.03<=x2<=0.05, wherein x1-x2<=0.01, α=0, β=0. |
