| 摘要 |
PROBLEM TO BE SOLVED: To provide: a piezoelectric material that reduces the burden on the environment, and has high piezoelectric characteristics and dielectric characteristics in a wide use environment temperature range and also a high Curie temperature; a piezoelectric element; a liquid ejecting head; an ultrasonic sensor; a piezoelectric motor; and a power generator.SOLUTION: A piezoelectric material contains: a first component, such as Ba(Zr,Ti)O3, which comprises a complex oxide having a perovskite structure that is a rhombohedral crystal in single composition and has a Curie temperature of Tc1; a second component, such as (K,Na)NbO3 to which Sr is added, which comprises a complex oxide having a perovskite structure that is a crystal other than a rhombohedral crystal in single composition and has a Curie temperature of Tc2; and a third component, such as Bi(Fe,Mn)O3, which comprises a complex oxide having a perovskite structure that is a rhombohedral crystal in single composition but different from the first component and has a Curie temperature of Tc3. Tc2 is higher than Tc1, and Tc3 is equal to or higher than Tc2. A value of (0.1×Tc1+0.9×Tc2) is 280°C or below. |
