| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition having large electromechanical coupling factor, small mechanical quality factor, and small relative permittivity with respect to electromechanical coupling factor and obtainably by sintering at low temperature and to provide a piezoelectric resonator, a piezoelectric filter, a laminated piezoelectric element and a ladder filter obtainable from the piezoelectric ceramic composition. SOLUTION: The piezoelectric ceramic composition is a lead-containing multiple oxide represented by the general formula aPdx(CryNb1-y)O3-bPbxTiO3- cPbxZrO3 (wherein (a), (b) and (c) are mol%, a+b+c=100, 3.0<=a<=11.0, 49.1<=b<=53.0, 36.0<=c<=47.9; 0.96<=x<=1.02; 2/24<=y<=11/24). |
