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- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2021.11
- 수록면
- 87 - 87 (1page)
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Fe-based amorphous soft magnetic powder is considered an ideal material for soft magnetic composite (SMC) due to its excellent magnetic properties such as a low coercivity, a high resistance, and good DC bias characteristics. In general, the amorphous soft magnetic material is manufactured in the form of a ribbon or wire using a rapid solidification process. However, direct application in the form of ribbons or wires is very limited. Therefore, powder metallurgy has to be applied to manufacture soft magnetic parts with complex shapes.
Previously, the gas atomization process was attempted to make amorphous soft magnetic metal powder. However, it is difficult to maintain amorphous due to the low cooling rate, therefore a larger amount of glass-forming metals is added. Accordingly, the iron content is limited and causes a low saturation magnetization. On the other hand, the melt spin process with a high cooling rate can manufacture a metal ribbon with high saturation magnetization.
However, manufacturing the powder core using the melt spin process requires a milling process. In particular, there is a problem in that the milling efficiency is low due to the low d ... 전체 초록 보기
Previously, the gas atomization process was attempted to make amorphous soft magnetic metal powder. However, it is difficult to maintain amorphous due to the low cooling rate, therefore a larger amount of glass-forming metals is added. Accordingly, the iron content is limited and causes a low saturation magnetization. On the other hand, the melt spin process with a high cooling rate can manufacture a metal ribbon with high saturation magnetization.
However, manufacturing the powder core using the melt spin process requires a milling process. In particular, there is a problem in that the milling efficiency is low due to the low d ... 전체 초록 보기
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