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    Lead-free piezoelectric ceramic composition and piezoelectric element

    Neue Suche nach: HIROSE YOSHINOBU
    Neue Suche nach: MATSUOKA TAKAYUKI
    Neue Suche nach: ICHIHASHI KENTARO
    Neue Suche nach: YAMAZAKI MASATO

    And the mechanical quality factor (Qm) in the lead-free piezoelectric ceramic composition is improved. The lead-free piezoelectric ceramic composition includes a main phase including an alkali-based Nb (niobium) acid salt/Ta (tantalate) perovskite oxide, and a sub-phase including a spinel compound including Ti (titanium). The lead-free piezoelectric ceramic composition contains Mn (manganese), the content ratio x of Ti is greater than 0 mol% and 4 mol% or less, and the content ratio x of Ti and the content ratio y of Mn satisfy relational expression (1). Formula (1): x2/y < = 20.0.

    提高无铅压电陶瓷组合物中的机械品质因数(Qm)。无铅压电陶瓷组合物含有主相和副相，所述主相包含碱类Nb(铌)酸盐/Ta(钽)酸盐钙钛矿型氧化物，所述副相含有包含Ti(钛)的尖晶石化合物。无铅压电陶瓷组合物含有Mn(锰)，Ti的含有比率x大于0mol％且为4mol％以下，且前述Ti的含有比率x与Mn的含有比率y满足下述关系式(1)。x2/y≤20.0…式(1)。

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    Lead-free piezoelectric ceramic composition and piezoelectric element

    Neue Suche nach: HIROSE YOSHINOBU
    Neue Suche nach: MATSUOKA TAKAYUKI
    Neue Suche nach: ICHIHASHI KENTARO
    Neue Suche nach: YAMAZAKI MASATO

    And the mechanical quality factor (Qm) in the lead-free piezoelectric ceramic composition is improved. The lead-free piezoelectric ceramic composition includes a main phase including an alkali-based Nb (niobium) acid salt/Ta (tantalate) perovskite oxide, and a sub-phase including a spinel compound including Ti (titanium). The lead-free piezoelectric ceramic composition contains Mn (manganese), the content ratio x of Ti is greater than 0 mol% and 4 mol% or less, and the content ratio x of Ti and the content ratio y of Mn satisfy relational expression (1). Formula (1): x2/y < = 20.0.

    提高无铅压电陶瓷组合物中的机械品质因数(Qm)。无铅压电陶瓷组合物含有主相和副相，所述主相包含碱类Nb(铌)酸盐/Ta(钽)酸盐钙钛矿型氧化物，所述副相含有包含Ti(钛)的尖晶石化合物。无铅压电陶瓷组合物含有Mn(锰)，Ti的含有比率x大于0mol％且为4mol％以下，且前述Ti的含有比率x与Mn的含有比率y满足下述关系式(1)。x2/y≤20.0…式(1)。

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    Lead-free piezoelectric ceramic composition and piezoelectric element

    Neue Suche nach: HIROSE YOSHINOBU
    Neue Suche nach: MATSUOKA TAKAYUKI
    Neue Suche nach: ICHIHASHI KENTARO
    Neue Suche nach: YAMAZAKI MASATO

    And the mechanical quality factor (Qm) in the lead-free piezoelectric ceramic composition is improved. The lead-free piezoelectric ceramic composition includes a main phase including an alkali-based Nb (niobium) acid salt/Ta (tantalate) perovskite oxide, and a sub-phase including a spinel compound including Ti (titanium). The lead-free piezoelectric ceramic composition contains Mn (manganese), the content ratio x of Ti is greater than 0 mol% and 4 mol% or less, and the content ratio x of Ti and the content ratio y of Mn satisfy relational expression (1). Formula (1): x2/y < = 20.0.

    提高无铅压电陶瓷组合物中的机械品质因数(Qm)。无铅压电陶瓷组合物含有主相和副相，所述主相包含碱类Nb(铌)酸盐/Ta(钽)酸盐钙钛矿型氧化物，所述副相含有包含Ti(钛)的尖晶石化合物。无铅压电陶瓷组合物含有Mn(锰)，Ti的含有比率x大于0mol％且为4mol％以下，且前述Ti的含有比率x与Mn的含有比率y满足下述关系式(1)。x2/y≤20.0…式(1)。

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    Titel:

    Lead-free piezoelectric ceramic composition and piezoelectric element

    Weitere Titelangaben:

    无铅压电陶瓷组合物和压电元件

    Beteiligte:

    HIROSE YOSHINOBU (Autor:in) / MATSUOKA TAKAYUKI (Autor:in) / ICHIHASHI KENTARO (Autor:in) / YAMAZAKI MASATO (Autor:in)

    Erscheinungsdatum:

    24.11.2023

    Medientyp:

    Patent

    Format:

    Elektronische Ressource

    Sprache:

    Chinesisch

    Klassifikation:

    IPC:  C04B Kalk , LIME / H10N

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