| 摘要 |
PURPOSE:To provide a dielectric porcelain composition which contains no or trace amounts of a Bi compound and has a low baking temperature by adding SiO2, ZnO and the Bi compound in specific amounts as auxiliary components to main components of a specific composition which comprises Sr, Pb, Ca and Ti. CONSTITUTION:This dielectric porcelain composition contains SiO2 and ZnO as auxiliary components for a total of 0.25 to 5 moles in 100 moles of main components of a composition consisting of Sr by A moles in terms of PbO, Pb by B moles in terms of PbO, Ca by C moles in terms of Cab, and Ti by D moles in terms of TiO2 with 0<A<40, 5<B<40, 0<C<40, and 49.7 <D<50.3, and withm the amount of SiO2 being 2.5 moles or less, and the composition further contains 0 to 1 moles of MnO2, with Bi added by only 0.3 moles or less in terms of Bi2O. The composition allows baking even with a baking temperature set at 1050 deg.C or less, and can therefore reduce manufacturing costs. |
