| 摘要 |
PURPOSE:To prevent insulation resistance of a lead oxide-based compound oxide dielectric material from deteriorating in calcination in a reducing atmosphere by providing a reduction inhibitor for adding to the above-mentioned dielectric material with a specific composition consisting of respective oxides of Li, an alkaline earth metal, B and Si. CONSTITUTION:The subject reduction inhibitor consists of a composition expressed by the general formula a(LiO1/2+RO)-(1-a)(BO1/2+SiO2) (0.01<=a<=0.80 molar ratio; R is one or more of Mg, Ca, Sr and Ba). If the (LiO1/2+RO) is <0.01 molar ratio or exceeds 0.80 molar ratio in the above- mentioned inhibitor, insulation resistance of a lead oxide-based compound oxide dielectric material is <10<10>OMEGAcm and nonreducing properties cannot be realized. Furthermore, the amount of the inhibitor added to the dielectric material which is the principal component varies with the dielectric material which is the principal component, but is preferably 0.05-25.0wt.%. |
