| 摘要 |
PURPOSE:To enhance the insulation resistance, dielectric breakdown strength, etc., of the title compsn. by specifying X, y and z when the principal component is represented by a general formula xBaO.y[(TiO2)(1-m)(ZrO2)m].z(Re(1-n)Men)O3/2 and by adding a specified amt. (expressed in terms of V2O5) of vanadium oxide. CONSTITUTION:This dielectric porcelain compsn. contains 100 pts.wt. principal component represented by the above-mentioned general formula (where x, y and z show a molar ratio within the ranges each defined by points a-f in the table, X+y+z=1.00, 0.001<=m<=0.200, 0.01<=n<=0.20, Re is one or more kinds of rare earth elements selected among La, Pr, Nd and Sm, and Me is one or more kinds of rare earth elements other than Re) and 0.005-1.000 pt.wt. (expressed in terms of V2O5) vanadium oxide as a secondary component. ZrO2 enhances dielectric breakdown strength and V2O5 enhances insulation resistance, dielectric breakdown strength, satisfaction Q, etc. |
