| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a (Li, Na, K)(Nb, Ta, Sb)O<SB>3</SB>type piezoelectric/electrostrictive ceramic composition excellent in the electric field-induced strain during high electric field application. <P>SOLUTION: A piezoelectric/electrostrictive film 122 of a piezoelectric/electrostrictive actuator 1 is a sintered body of the piezoelectric/electrostrictive ceramic composition. The piezoelectric/electrostrictive ceramic composition comprises a perovskite type oxide comprising as A site elements, Li, Na, and K and as B site elements, Nb and Sb and having a ratio of the total number of atoms of the A site elements to the total number of atoms of the B site elements greater than 1 and not less than 1 mol% and not more than 10 mol% of the number of Sb atoms in the total number of atoms of the B site elements and the trace quantity of a Mn compound added to the perovskite type oxide. <P>COPYRIGHT: (C)2009,JPO&INPIT |
