LIQUID INJECTION HEAD, LIQUID INJECTION DEVICE AND PIEZOELECTRIC ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a liquid injection head having a piezoelectric layer with a small environmental load and an excellent piezoelectric characteristic, and a liquid injection device having the liquid injection head.

SOLUTION: A liquid injection head 600 comprises a piezoelectric actuator 102 that includes a piezoelectric layer 30 formed by a thin film method and electrodes 10 and 20 applying a voltage to the piezoelectric layer 30. The piezoelectric layer 30 of the liquid injection head 600 is a solid solution including sodium bismuth titanate and 0.2 to 8.0 mole% copper.

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