| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid injection head that reduces an environmental load and that suppresses a leak current by having high insulation properties, a liquid injection apparatus, and a piezoelectric element. <P>SOLUTION: A liquid injection head comprises a pressure generating chamber 12 that communicates with a nozzle opening 21, and a piezoelectric element 300 that comprises a piezoelectric layer 70 and electrodes 60 and 80 provided in the piezoelectric layer 70. The piezoelectric layer 70, which is made of a complex oxide having a perovskite-type structure containing bismuth and iron, includes at least one kind of first dope element selected from the group consisting of magnesium and zinc, and a second dope element made of cerium. <P>COPYRIGHT: (C)2012,JPO&INPIT |
