发明授权
US08492302B2 Dielectric ceramic composition and ceramic electronic component 有权
介电陶瓷组合物和陶瓷电子元件

Dielectric ceramic composition and ceramic electronic component
摘要:
A dielectric ceramic composition includes a compound having perovskite type crystal structure shown by a general formula ABO3, where A is at least one selected from Ba, Ca and Sr, and B is at least one selected from Ti and Zr. The dielectric ceramic composition includes, as subcomponents, an oxide of RA (Dy, Gd and Tb); an oxide of RB (Ho and Y); an oxide of RC (Yb and Lu); Mg oxide and an oxide including Si in terms of RA2O3, RB2O3, RC2O3, Mg and Si, respectively. Also, when contents of the oxide of RA, RB and RC with respect to 100 moles of the compound are defined as “α”, “β” and “γ”, respectively, they satisfy relations of 1.2≦(α/β)≦5.0 and 0.5≦(β/γ)≦10.0.
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