发明申请
- 专利标题： PIEZOELECTRIC CERAMIC COMPOSITION AND LAMINATED PIEZOELECTRIC ELEMENT
- 专利标题（中）： 压电陶瓷组合物和层压压电元件
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申请号： US11686455申请日： 2007-03-15
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公开(公告)号： US20070222341A1公开(公告)日： 2007-09-27
- 发明人: Kumiko Iezumi , Junichi Yamazaki , Norimasa Sakamoto , Takeo Tsukada , Masahito Furukawa , Keisuke Itakura , Hideya Sakamoto , Yumiko Kozasa , Masayoshi Inoue , Masaru Nanao , Satoshi Ozawa
- 申请人： Kumiko Iezumi , Junichi Yamazaki , Norimasa Sakamoto , Takeo Tsukada , Masahito Furukawa , Keisuke Itakura , Hideya Sakamoto , Yumiko Kozasa , Masayoshi Inoue , Masaru Nanao , Satoshi Ozawa
- 申请人地址： JP Tokyo
- 专利权人： TDK CORPORATION
- 当前专利权人： TDK CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2006-078378 20060322; JP2006-324771 20061130
- 主分类号： H01L41/187
- IPC分类号： H01L41/187 ; C04B35/00 ; H01L41/083
摘要：
Provided is a piezoelectric ceramic composition capable of being sintered at low temperatures and in a low-oxygen reductive atmosphere and capable of attaining a sufficient displacement even at high voltages of 1 kV/mm or more. The piezoelectric ceramic composition includes: a composite oxide, as a main constituent thereof, represented by the following composition formula; Cu and/or Ag, each as a first additive, Cu being included in a content α, in terms of Cu2O, falling within a range 0