Piezoelectric ceramic composition
    10.
    发明授权
    Piezoelectric ceramic composition 有权
    压电陶瓷组合物

    公开(公告)号:US07985348B2

    公开(公告)日:2011-07-26

    申请号:US12076694

    申请日:2008-03-21

    IPC分类号: H01L41/187

    摘要: A piezoelectric ceramic composition having a large piezoelectric constant (d) and as well having a large Qm value is to be provided. The piezoelectric ceramic composition aimed at has a composition corresponding to a solid solution containing a first compound possessing a rhombohedral crystal-based perovskite structure, a second compound possessing a tetragonal crystal-based perovskite structure, and a third compound. The third compound is a compound oxide containing Bi as a first component element, Mn as a second component element, and a tetravalent metallic element or a pentavalent metallic element as a third component element. The tetravalent metallic element is at least one member selected from the group consisting of Ti, Zr, Hf, and Sn. The pentavalent metallic element is at least one member selected from the group consisting of Nb, Ta, and Sb.

    摘要翻译: 提供具有大的压电常数(d)并且具有大的Qm值的压电陶瓷组合物。 目标的压电陶瓷组合物具有对应于含有具有菱方晶系的钙钛矿结构的第一化合物,具有四方晶系钙钛矿结构的第二化合物和第三化合物的固溶体的组成。 第三化合物是含有Bi作为第一成分元素的复合氧化物,Mn作为第二成分元素,四价金属元素或五价金属元素作为第三成分元素。 四价金属元素是选自Ti,Zr,Hf和Sn中的至少一种。 五价金属元素是选自Nb,Ta和Sb中的至少一种。