PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC EQUIPMENT

摘要

There is provided a lead- and potassium-free piezoelectric material having a high piezoelectric constant and a satisfactory insulation property and a piezoelectric element that includes the piezoelectric material. The piezoelectric material contains a perovskite-type metal oxide having the general formula (1): (NaxBa1-y) (NbyTi1-y) O3 (wherein x satisfies 0.80 ≤ x ≤ 0.95, and y satisfies 0.85 ≤ y ≤ 0.95) and Zn, wherein the Zn content corresponds to more than 0 mol% and 5 mol% or less of the amount of perovskite- type metal oxide. The piezoelectric element includes the piezoelectric material.