发明申请
US20080129155A1 PIEZOELECTRIC CERAMIC COMPOSITION AND LAMINATED PIEZOELECTRIC ELEMENT 失效
压电陶瓷组合物和层压压电元件

PIEZOELECTRIC CERAMIC COMPOSITION AND LAMINATED PIEZOELECTRIC ELEMENT
摘要:
A piezoelectric ceramic composition includes: a composite oxide, as a main component thereof, represented by the composition formula, Pba[(Zn1/3Nb2/3)xTiyZrz]O3, wherein a, x, y and z satisfy the following relations, 0.96≦a≦1.03, 0.005≦x≦0.047, 0.42≦y≦0.53, 0.45≦z≦0.56, and x+y+z=1, and the following additives in the indicated percentages by mass in relation to the main component, Cu as a first additive, in a content α, in terms of Cu2O, falling within a range 0
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