| 摘要 |
An objective of the present invention is to provide a piezoelectric material, which reduces environmental loads, has high piezoelectric properties and dielectric properties in a wide range of temperatures and has high Curie temperature, a piezoelectric element using the piezoelectric material, a liquid spraying head, a liquid spraying apparatus, an ultrasonic wave sensor, a piezoelectric motor and a power generator. To this end, the piezoelectric material includes: a first component, which is a rhombohedral crystal, including a compound oxide having a perovskite structure and Curie temperature of Tc1; a second component, which is a crystal other than the rhombohedral crystal, including the compound oxide having the perovskite structure and a Curie temperature of Tc2; and a third component, which is a same crystal system as the second component, including the compound oxide with the perovskite structure and a Curie temperature of Tc3, wherein the Tc1 is higher that the Tc2, and the Tc3 is higher than or equal to the Tc1. |
