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发明公开
CN1968910A 压电陶瓷组合物和压电陶瓷电子部件 有权

压电陶瓷组合物和压电陶瓷电子部件
摘要：
主要组分具有通式{(1－x)(K1－a－bNaaLib)m(Nb1－c－dTacSbd)O3－x(M10.5Bi0.5)nM2O3}(其中M1为Ca，Sr或Ba，M2为Ti，Zr或Sn，0.005≤x≤0.5，0≤a≤0.9，0≤b≤0.3，0≤a+b≤0.9，0≤c≤0.5，0≤d≤0.1，0.9≤m≤1.1以及0.9≤n≤1.1)。以每100摩尔的主要组分计，包含总计为0.1到10摩尔(优选1.5到10摩尔)的选自由In，Sc，Y，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Yb和Lu组成的组中的至少一种特定元素。这可以以始终如一且高效的方式提供在非常低的电场和高电场中都可以具有所需的高压电d常数的压电陶瓷组合物和压电陶瓷电子部件。
摘要（英）：

A main component has a general formula of {(1-x)(K1-a-bNaaLib)m(Nb1-c-dTacSbd)O3-x(M10.5Bi0.5)nM2O3} (wherein M1 is Ca, Sr or Ba, M2 is Ti, Zr or Sn, 0.005<=x<=0.5, 0<=a<=0.9, 0<=b<=0.3, 0<=a+b<=0.9, 0<=c<=0.5, 0<=d<=0.1, 0.9<=m<=1.1, and 0.9<=n<=1.1). At least one specific element selected from the group consisting of In, Sc, Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Lu is contained, 0.1 to 10 mol in total per 100 mols of the main component (preferably, 1.5 to 10 mol). This provides a piezoelectric ceramic composition and a piezoelectric ceramic electronic component that can have a desired high piezoelectric d constant in a consistent and highly efficient manner in both a very low electric field and a high electric field.

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