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PIEZO ELECTRIC ELEMENT, PIEZO ACTUATOR, AND PIEZO TRANSFORMER
To provide a piezoelectric element with reduced dielectric loss, a piezoelectric actuator having the piezoelectric element, and a piezoelectric transformer.SOLUTION: A piezoelectric element according to the present invention has a laminated body in which a piezoelectric layer and an inner electrode layer are stacked. And the inner electrode layer contains at least one element selected from palladium, nickel, platinum, gold, and silver, and copper, and the content of copper in the inner electrode layer is 1at% or more and 50at% or less in terms of copper elements.SELECTED DRAWING: Figure 4
【課題】誘電損失を低減した圧電素子と、当該圧電素子を有する圧電アクチュエータおよび圧電トランスを提供すること。【解決手段】本発明の圧電素子は、圧電体層と内部電極層とが積層してある積層体を有する。そして、内部電極層は、パラジウム、ニッケル、白金、金、銀から選ばれる少なくとも１種の元素と、銅とを含んでおり、内部電極層に含まれる銅の含有率が、銅元素換算で、１ａｔ％以上、５０ａｔ％以下である。【選択図】図４
PIEZO ELECTRIC ELEMENT, PIEZO ACTUATOR, AND PIEZO TRANSFORMER
To provide a piezoelectric element with reduced dielectric loss, a piezoelectric actuator having the piezoelectric element, and a piezoelectric transformer.SOLUTION: A piezoelectric element according to the present invention has a laminated body in which a piezoelectric layer and an inner electrode layer are stacked. And the inner electrode layer contains at least one element selected from palladium, nickel, platinum, gold, and silver, and copper, and the content of copper in the inner electrode layer is 1at% or more and 50at% or less in terms of copper elements.SELECTED DRAWING: Figure 4
【課題】誘電損失を低減した圧電素子と、当該圧電素子を有する圧電アクチュエータおよび圧電トランスを提供すること。【解決手段】本発明の圧電素子は、圧電体層と内部電極層とが積層してある積層体を有する。そして、内部電極層は、パラジウム、ニッケル、白金、金、銀から選ばれる少なくとも１種の元素と、銅とを含んでおり、内部電極層に含まれる銅の含有率が、銅元素換算で、１ａｔ％以上、５０ａｔ％以下である。【選択図】図４
PIEZO ELECTRIC ELEMENT, PIEZO ACTUATOR, AND PIEZO TRANSFORMER
圧電素子、圧電アクチュエータ、および圧電トランス
HIROSE YUKIKO (author) / KATO HIROKI (author) / AKIYAMA YUMI (author)
2021-10-07
Patent
Electronic Resource
Japanese
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