| 소결조건이 Mn-Zn Ferrites의 전자기적 물성에 미치는 효과 |
| 최윤호, 신명승1, 한승기1, 한영호 |
성균관대학교 재료공학과
1이수세라믹(주) |
| Effect of Sintering Conditions on the Electromagnetic Properties of Mn-Zn Ferrites |
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| ABSTRACT |
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The effects of sintering temperature and oxygen partial pressure on the electromagnetic properties of Mn-Zn ferrites were investigated. The grain increased with increasing temperature. The power loss at 100 kHz was decreased, while the power loss at 500 kHz was increased as the grain size increased with sintering temperature. Sintering with low oxygen partial pressure at 115$0^{circ}C$ resulted in high density and initial permeability, and decreased the power loss at 100 kHz and 500 kHz. The oxygen partial pressure lower than 10-2 atm. during heating, significantly suppressed the hysteresis loss. However, the oxygen activity did not affect the grain size of sintered cores. |
| Key words:
Mn-Zn ferrites, Sintering, Oxygen pressure, Power loss, Density |
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