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LAMINATED PIEZOELECTRIC ELEMENT
Provided is a laminated piezoelectric element which includes a plurality of ceramic piezoelectric layers, inner electrodes that are formed between the ceramic piezoelectric layers, and an outer electrode that is electrically connected to the inner electrodes, wherein the laminated piezoelectric element is characterized in that the ceramic piezoelectric layers are represented by the compositional formula, {Ba1-xCaxO}mTiO2+[alpha]Re2O3+[beta]MgO+[gamma]MnO [provided that Re2O3 is at least one selected from the group consisting of Y2O3, Gd2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3, Yb2O3, and La2O3, and [alpha], [beta], and [gamma] represent molar ratios and satisfy relational expressions (1) to (5)], the ceramic piezoelectric layers comprise 0.2 to 0.8 parts by weight of SiO2 as a secondary component relative to 100 parts by weight of a primary component in the {Ba1-xCaxO}TiO2 raw material used for the ceramic piezoelectric layers, the ceramic piezoelectric layers have remnant polarizations in a specific direction, and the inner electrodes comprise nickel, nickel alloy, copper, or copper alloy.
一种压电层叠元件，具备多个压电体陶瓷层、形成在所述压电体陶瓷层间的内部电极、以及与所述内部电极电连接的外部电极，所述压电层叠元件的特征在于，所述压电体陶瓷层由以下的组成式表示，{Ba1‑xCaxO}mTiO2+αRe2O3+βMgO+γMnO[其中，Re2O3为从Y2O3、Gd2O3、Tb2O3、Dy2O3、Ho2O3、Er2O3、Yb2O3以及La2O3之中选择的至少一种以上，α、β以及γ表示摩尔比，并满足关系式(1)～(5)]，并且，相对于用于所述压电体陶瓷层的{Ba1‑xCaxO}TiO2原料中的100重量份的主成分，含有0.2重量份以上且0.8重量份以下的作为副成分的SiO2，所述压电体陶瓷层在一定方向上具有残留极化，所述内部电极包含镍、镍合金、铜或铜合金。
LAMINATED PIEZOELECTRIC ELEMENT
Provided is a laminated piezoelectric element which includes a plurality of ceramic piezoelectric layers, inner electrodes that are formed between the ceramic piezoelectric layers, and an outer electrode that is electrically connected to the inner electrodes, wherein the laminated piezoelectric element is characterized in that the ceramic piezoelectric layers are represented by the compositional formula, {Ba1-xCaxO}mTiO2+[alpha]Re2O3+[beta]MgO+[gamma]MnO [provided that Re2O3 is at least one selected from the group consisting of Y2O3, Gd2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3, Yb2O3, and La2O3, and [alpha], [beta], and [gamma] represent molar ratios and satisfy relational expressions (1) to (5)], the ceramic piezoelectric layers comprise 0.2 to 0.8 parts by weight of SiO2 as a secondary component relative to 100 parts by weight of a primary component in the {Ba1-xCaxO}TiO2 raw material used for the ceramic piezoelectric layers, the ceramic piezoelectric layers have remnant polarizations in a specific direction, and the inner electrodes comprise nickel, nickel alloy, copper, or copper alloy.
一种压电层叠元件，具备多个压电体陶瓷层、形成在所述压电体陶瓷层间的内部电极、以及与所述内部电极电连接的外部电极，所述压电层叠元件的特征在于，所述压电体陶瓷层由以下的组成式表示，{Ba1‑xCaxO}mTiO2+αRe2O3+βMgO+γMnO[其中，Re2O3为从Y2O3、Gd2O3、Tb2O3、Dy2O3、Ho2O3、Er2O3、Yb2O3以及La2O3之中选择的至少一种以上，α、β以及γ表示摩尔比，并满足关系式(1)～(5)]，并且，相对于用于所述压电体陶瓷层的{Ba1‑xCaxO}TiO2原料中的100重量份的主成分，含有0.2重量份以上且0.8重量份以下的作为副成分的SiO2，所述压电体陶瓷层在一定方向上具有残留极化，所述内部电极包含镍、镍合金、铜或铜合金。
LAMINATED PIEZOELECTRIC ELEMENT
压电层叠元件
FUJITA AKIO (author) / NAKAMURA YUSUKE (author) / HAYASHI SHIGETOSHI (author) / KAWADA SHINICHIRO (author)
2021-04-20
Patent
Electronic Resource
Chinese
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