发明名称 |
Piezoelectric/electrostrictive body, piezoelectric/electrostrictive laminate, and piezoelectric/electrostrictive actuator |
摘要 |
There is disclosed a piezoelectric/electrostrictive body which has superior piezoelectric/electrostrictive properties and which exhibits a sufficient durability even in a case where a flexural displacement is repeated a large number of times. A piezoelectric/electrostrictive body is constituted of a large number of crystal grains having the piezoelectric/electrostrictive properties in the form of a film or a layer having one or more layers. A number ratio of crystal grains whose grain diameters W in a width direction are longer than grain diameters T in a thickness direction is 70% or more of a large number of crystal grains observed in an arbitrary section in the thickness direction.
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申请公布号 |
US2006138899(A1) |
申请公布日期 |
2006.06.29 |
申请号 |
US20050305660 |
申请日期 |
2005.12.16 |
申请人 |
NGK INSULATORS, LTD. |
发明人 |
NANATAKI TSUTOMU;KITAGAWA MUTSUMI;KASHIWAYA TOSHIKATSU |
分类号 |
H01L41/18 |
主分类号 |
H01L41/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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