Patent ID: 8673799
Filing Date: 2014-03-18
Classification: C04B,H01G

Abstract:
1. A dielectric ceramic composition comprising barium titanate as a main component, and as subcomponents, 1.00 to 2.50 moles of an oxide of Mg, 0.01 to 0.20 mole of an oxide of Mn and/or Cr, 0.03 to 0.15 mole of an oxide of at least one element selected from a group consisting of V, Mo and W, 0.20 to 1.50 mole of an oxide of R1 where R1 is at least one selected from a group consisting of Y and Ho, 0.20 to 1.50 mole of an oxide of R2 where R2 is at least one selected from a group consisting of Eu, Gd and Tb and 0.30 to 1.50 mole of an oxide of Si and/or B, in terms of each oxide with respect to 100 moles of said barium titanate, wherein: α and β satisfy a relation of 0.25≦β/(α+β)<0.85 when α and β are respectively defined in mole as a content of the oxide of R1 in terms of R1 a content of A (A is the total of Ba and Ca in the dielectric ceramic composition), a content of B (B is the total of Ti and Zr in the dielectric ceramic composition) satisfy a relation of 1.000≦A/B≦1.006 in the dielectric ceramic composition.