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Piezoelectric ceramic composition and piezoelectric ceramic electronic component
A piezoelectric ceramic includes a main constituent represented by the general formula {(1−x) (K1-a-bNaaLib)(Nb1-cTac)O3}−xM2M4O3}, and as accessory constituents, 2α mol of Na, (α+β) mole of an M4′ element, and γ mol of Mn with respect to 100 mol of the main constituent, where 0.1≰α≰β, 1≰α+β≰10, and 0≰γ≰10, M2 is Ca, Ba, and/or Sr, the M4 element and the M4′ element are Zr, Sn, and/or Hf, 0≰x≰0.06, 0≰a≰0.9, 0≰b≰0.1, and 0≰c≰0.3. Even in the case of using Ni as the main constituent in an internal electrode material of a piezoelectric element and carrying out co-firing, favorable piezoelectric properties can be obtained without defective polarization.
Piezoelectric ceramic composition and piezoelectric ceramic electronic component
A piezoelectric ceramic includes a main constituent represented by the general formula {(1−x) (K1-a-bNaaLib)(Nb1-cTac)O3}−xM2M4O3}, and as accessory constituents, 2α mol of Na, (α+β) mole of an M4′ element, and γ mol of Mn with respect to 100 mol of the main constituent, where 0.1≰α≰β, 1≰α+β≰10, and 0≰γ≰10, M2 is Ca, Ba, and/or Sr, the M4 element and the M4′ element are Zr, Sn, and/or Hf, 0≰x≰0.06, 0≰a≰0.9, 0≰b≰0.1, and 0≰c≰0.3. Even in the case of using Ni as the main constituent in an internal electrode material of a piezoelectric element and carrying out co-firing, favorable piezoelectric properties can be obtained without defective polarization.
Piezoelectric ceramic composition and piezoelectric ceramic electronic component
KAWADA SHINICHIRO (Autor:in)
19.04.2016
Patent
Elektronische Ressource
Englisch
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