| 发明名称 |
PIEZOELECTRIC COMPOSITION AND PIEZOELECTRIC ELEMENT |
| 摘要 |
The present invention aims to provide a piezoelectric composition and a piezoelectric element containing the piezoelectric composition. In the piezoelectric composition, the main component contains a substance represented by the following formula with a perovskite structure,;(Bi(0.5x+y+z)Na0.5x)m(Ti(x+0.5y)Mg0.5yAlkzCo(1−k)z)O3 ;0.15≦x≦0.7, 0.28≦y≦0.75, 0.02≦z≦0.30, 0.17≦k≦0.83, 0.75≦m≦1.0, and x+y+z=1. |
| 申请公布号 |
US2015280105(A1) |
申请公布日期 |
2015.10.01 |
| 申请号 |
US201514674466 |
申请日期 |
2015.03.31 |
| 申请人 |
TDK CORPORATION |
发明人 |
SAYA Yuko;MASAI Taku;FURUKAWA Masahito;HAEMORI Masamitsu |
| 分类号 |
H01L41/187;H01L41/083 |
主分类号 |
H01L41/187 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A piezoelectric composition comprising a main component which contains a substance represented by the following formula with a perovskite structure,
(Bi(0.5x+y+z)Na0.5x)m(Tix+0.5yMg0.5yAlkzCo(1−k)z)O3 wherein, 0.15≦x≦0.7, 0.28≦y≦0.75, 0.02≦z≦0.30, 0.17≦k≦0.83, 0.75≦m≦1.0, and x+y+z=1. |
| 地址 |
Tokyo JP |
