| 摘要 |
According to a preferred embodiment, the piezoelectric ceramic includes a complex oxide having the composition represented by formula (1) or (2), and Mn at 0.2-1.2 mass % or 0.2-3 mass %, respectively, in terms of MnCO3. (Pb1-aA1a)TixZr1-x-y-z-b(Zn1/3A22/3)y(Yb1/2A21/2)zSnbO3(1) (Pb1-aA1a)TixZr1-x-y-b(Zn1/3A22/3)ySnbO3(2) [In formula (1), A1 represents at least one element selected from the group consisting of Ca, Sr and Ba, and A2 is at least one element selected from the group consisting of Nb, Ta and Sb, and includes at least Nb. In formula (2), A1 represents at least one element selected from among Ca, Sr and Ba, A2 represents at least one element selected from among Nb and W, and A2 includes at least Nb.] |
