| Title |
The Electrical Characteristics of Ceramic Capacitor for High Voltage |
| Abstract |
The ceramic capacitor was fabricated by (Ba0.85Ca0.15)TiO₃+ZnO(from 0.1 to 0.4 mol ratio). The electrical and structural properties of ceramic capacitor for high voltage application was studied in this study. The relative density of ceramics capacitor has shown high in all specimen. The grain was a small size from 1.0[㎛] to 1.22[㎛] and it was increased with ZnO at 0.3 mol ratio. It was stabilized that the temperature coefficient of ceramic capacitor to change temperature had below 110[ppm] at 0.12~10[kHz]. The dielectric relaxation turn was decreased by interface polarization over 110[℃] and it was increased by space polarization of paraelectric layer below 110[℃]. The insulating layer was increased with ZnO and dielectric constant to voltage was stabilized by 0.1[%]. |