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Journal of the Korean Ceramic Society 1987;24(4): 392. |
| 강유전체에서의 전계분포 및 절연파괴 |
| 신병철, 김호기 |
| 한국과학기술원 재료공학과 |
| Dielectric Breakdown and Electric Stress Distribution in Ferroelectrics |
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| ABSTRACT |
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Pure barium titanate was sintered at $1340^{circ}C$ for 2, 4, 8, 16 hr to control their grain size. The measurements of breakdown strength and partial discharge characteristics were performed under rising AC voltage(60Hz). With increase of sintering time, the average grain size was increased and breakdown strength was slightly decreased. Partial discharge in pores was observed under high voltage, and a model of dielectric break down in barium titanate ceramics is proposed. |
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