| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid injection head where a KNN thin film is oriented preferentially to (100), and to provide a liquid injection apparatus, a piezoelectric element and a method of manufacturing a piezoelectric element. <P>SOLUTION: A liquid injection head 600 comprises a pressure chamber 622 communicating with a nozzle opening 612, a piezoelectric 30, and a piezoelectric element 100 having a first electrode 10 and a second electrode 20 provided on the piezoelectric 30. At least one of the first electrode 10 and second electrode 20 contains platinum, and the piezoelectric 30 consists of a complex oxide containing potassium sodium niobate and bismuth iron. The ratio of mol number of bismuth iron to the sum of mol numbers of potassium sodium niobate and bismuth iron is 3-10%, and the ratio of the sum of mol numbers of potassium and sodium to the mol number of niobium is 103-115%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
