Importance

Loading Importance Indicators...

Abstract

Dielectric ceramic composition includes a hexagonal type barium titanate as a main component shown by a generic formula of (Ba_1-αM_α)_A(Ti_1-βMn_β)_BO₃ and having hexagonal structure wherein an effective ionic radius of 12-coordinated “M” is −20% or more to +20% or less with respect to an effective ionic radius of 12-coordinated Ba²⁺ and the A, B, α and β satisfy relations of 1.000<(A/B)≦1.040, 0≦α<0.003, 0.03≦β≦0.2, and as subcomponents, with respect to the main component, certain contents of alkaline earth oxide such as MgO and the like, Mn₃O₄ and/or Cr₂O₃, and CuO and Al₂O₃ and rare earth element oxide and glass component including SiO₂. According to the present invention, it can be provided the hexagonal type barium titanate powder and the dielectric ceramic composition which are preferable for producing electronic components such as a capacitor and the like showing comparatively high specific permittivity, having advantageous insulation property and having sufficient reliability.

Loading the Abstract Image...

First Claim