| 简介 |
This invention provides a dielectric ceramic having a core-shell structure and comprising crystal grains composed mainly of barium titanate and a grain boundary layer present among the crystal grains. A dielectric ceramic having a high permittivity, excellent stability of the temperature characteristics of the specific permittivity, and, at the same time, no significant dependence of insulating resistance upon voltage can be produced by incorporating vanadium, magnesium, rare earth element, and manganese in a predetermined ratio into the crystal grains and bringing a Curie temperature to a range of 80 to 90°C. |
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