发明授权
US08212457B2 Piezoelectric ceramic composition, piezoelectric element, and resonator 失效
压电陶瓷组合物,压电元件和谐振器

Piezoelectric ceramic composition, piezoelectric element, and resonator
摘要:
Provided is a piezoelectric ceramic composition which can increase Qmax of a resonator and inhibit the resonator from changing its oscillation frequency F0 under a low temperature environment. The piezoelectric ceramic composition has a structure represented by the following general formula (1): (PbαLnβMeγ)(Ti1−(x+y+z)ZrxMnyNbz)O3  (1) where Ln is a lanthanoid element, Me is an alkaline-earth metal element, α>0, β>0, γ≧0, 0.965≦α+β+γ≦1.000, 0.158≦x≦0.210, y≧0, z≧0, and 1−(x+y+z)>0.
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