Invention Grant
US09306149B2 Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device 有权
压电材料,压电元件,排液头,超声波电机和除尘装置

Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device
Abstract:
Provided is a piezoelectric material that achieves both high piezoelectric performance and high Curie temperature. In addition, provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric material. The piezoelectric material includes a perovskite-type metal oxide that is expressed by the following general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3 (1), where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.25≦x≦0.75, y satisfies 0.15≦y≦0.70, z satisfies 0.05≦z≦0.60, and x+y+z=1 is satisfied.
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