| 摘要 |
PURPOSE:To provide a dielectric ceramic composition excellent in dielectric characteristic, e.g. having a large epsilonr and a small absolute value of tauf since sintering can be realized at low temperatures despite of inclusion of PbO. CONSTITUTION:A dielectric ceramic composition includes a main component having a chemical composition expressed by a general formula: a(Ba1-x, Pbx)O- b(La1-y, Gdy)2O3-cTiO2 (wherein, a=11.7-21.7mol%, b=11.7-21.7mol%, a+b+c-100 mol%, 0.01<=x<=0.65, and 0.01<=y<=0.65) and an additive to be added into the main component. The additive is composed of 0.03-2wt.% of a Fe compound and 0.03-2wt.% of a Mn compound calculated in terms of metal with respect to the total quantity of the resultant dielectric ceramic composition. |
