| 摘要 |
<p>A dielectric porcelain composition which comprises a main component comprising barium titanate, a first auxiliary component comprising an AE oxide (wherein AE represents at least one selected from among Mg, Ca, Ba and Sr) and a second auxiliary component comprising an R oxide (wherein R represents at least one selected from among Y, Dy, Ho and Er), wherein the amounts of the first auxiliary component and the second auxiliary component relative to 100 moles of the main component are 0 mole < the first auxiliary component < 0.1 mole and 1 mole < the second auxiliary component < 7 mole, respectively. The composition exhibits an elevated relative permittivity, can retain initial insulation resistance for a long period of time, exhibits a capacity-temperature characteristic satisfying the X8R characteristic of EIA specification, and can be subjected to a firing treatment in a reducing atmosphere.</p> |
