| 摘要 |
PROBLEM TO BE SOLVED: To provide a dielectric ceramic composition sinterable at a temperature as low as about 1000 deg.C and having high dielectric constant at room temperature, high insulation resistance and high mechanical strengths. SOLUTION: The objective composition contains a main component having a chemical composition expressed by aPb(Mg1/2W1/2)O3-bPb(Co1/3Nb2/3)O3- cPbZrO3-dPbTiO3 (0.05<=a<=0.50; 0.05<=b<=0.70; 0.05<=c<=0.45; 0.05<=d<=0.30; a+b+c+d=1) and 0-10 mol.% (based on 100 mol.% of the main component) of Pb(Mn1/3Nb2/3)O3 added as an accessory component. |
