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LAMINATE TYPE PIEZOELECTRIC CERAMIC, METHOD FOR MANUFACTURING THE SAME, LAMINATE TYPE PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC VIBRATORY DEVICE
To provide a long-life laminate type piezoelectric element which has a piezoelectric ceramic layer containing no lead as a constituent element, and which is high in silver content in its internal electrode.SOLUTION: A laminate type piezoelectric ceramic comprises a piezoelectric ceramic layer containing no lead as a constituent element, but a perovskite compound represented by the composition formula, LixNayK1-x-yNbO3 (where 0.02
【課題】圧電セラミックス層が構成元素として鉛を含まず、内部電極中の銀の含有割合が高く、長寿命の積層型圧電素子を提供する。【解決手段】前記圧電セラミックス層を、構成元素として鉛を含まず、組成式ＬｉｘＮａｙＫ１−ｘ−ｙＮｂＯ３（ただし、０．０２＜ｘ≦０．１、０．０２＜ｘ＋ｙ≦１）で表されるペロブスカイト型化合物を主成分とすると共に、前記主成分１００モルに対して、Ｌｉを０〜１．０モル、Ｃａ、Ｓｒ及びＢａからなる群から選択される少なくとも１種のアルカリ土類金属元素を０．２〜５．０モル、Ｍｎを０．２〜２．０モル、並びにＳｉを０．１〜３．０モル含有するものとし、前記内部電極層を、銀を８０質量％以上含む金属で構成した積層型圧電セラミックスとする。【選択図】図１
LAMINATE TYPE PIEZOELECTRIC CERAMIC, METHOD FOR MANUFACTURING THE SAME, LAMINATE TYPE PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC VIBRATORY DEVICE
To provide a long-life laminate type piezoelectric element which has a piezoelectric ceramic layer containing no lead as a constituent element, and which is high in silver content in its internal electrode.SOLUTION: A laminate type piezoelectric ceramic comprises a piezoelectric ceramic layer containing no lead as a constituent element, but a perovskite compound represented by the composition formula, LixNayK1-x-yNbO3 (where 0.02
【課題】圧電セラミックス層が構成元素として鉛を含まず、内部電極中の銀の含有割合が高く、長寿命の積層型圧電素子を提供する。【解決手段】前記圧電セラミックス層を、構成元素として鉛を含まず、組成式ＬｉｘＮａｙＫ１−ｘ−ｙＮｂＯ３（ただし、０．０２＜ｘ≦０．１、０．０２＜ｘ＋ｙ≦１）で表されるペロブスカイト型化合物を主成分とすると共に、前記主成分１００モルに対して、Ｌｉを０〜１．０モル、Ｃａ、Ｓｒ及びＢａからなる群から選択される少なくとも１種のアルカリ土類金属元素を０．２〜５．０モル、Ｍｎを０．２〜２．０モル、並びにＳｉを０．１〜３．０モル含有するものとし、前記内部電極層を、銀を８０質量％以上含む金属で構成した積層型圧電セラミックスとする。【選択図】図１
LAMINATE TYPE PIEZOELECTRIC CERAMIC, METHOD FOR MANUFACTURING THE SAME, LAMINATE TYPE PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC VIBRATORY DEVICE
積層型圧電セラミックス及びその製造方法、積層型圧電素子並びに圧電振動装置
ITO AKIRA (author) / GOTO TAKAYUKI (author) / SHIMIZU HIROYUKI (author) / KISHIMOTO SUMIAKI (author)
2020-09-17
Patent
Electronic Resource
Japanese
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