| 摘要 |
PURPOSE:To obtain a dielectric porcelain composite which has a plain temperature change rate of electrostatic capacity within + or -15% along a wide temperature scope from -55 deg.C to +125 deg.C, when the electrostatic capacity at +25 deg.C is made as the standard, a small dielectric loss less than 1.0%, and furthermore, a high indicated value of the dielectric constant 3500 or higher regardless of such a plain temperature property, a small grain size less than 1mum, and a feature to be sintered at a relatively low temperature less than 125 deg.C. CONSTITUTION:To 100wt.pt. of BaTio3 including an alkaline metal oxide less than 0.03wt.% as impurities, 0.6 to 2.0wt.pt. of Nb2O5, 0.1 to 0.8wt.pt. of Co2O3, 0.05 to 0.3wt.pt. of MnO2 and 0.02 to 0.4wt.pt. Of Nd2O3 are included in this composite. |
