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- 온간성형법으로 제조된 Fe 분말 코어의 자성특성
- 김세훈, 조태선, 박민서, 김영도
- Magnetic Properties of Fe Powder Core Fabricated by Warm Compaction
- Se-Hoon Kim, Tae-Sun Jo, Min-Suh Park, Young-Do Kim
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Journal of Korean Powder Metallurgy Institute 2007;14(5):298-302
DOI: https://doi.org/10.4150/KPMI.2007.14.5.298
2한양대학교 신소재공학과
3한양대학교 신소재공학과
4한양대학교 신소재공학과
1Division of Materials Science and Engineering, Hanyang University
2Division of Materials Science and Engineering, Hanyang University
3Division of Materials Science and Engineering, Hanyang University
4Division of Materials Science and Engineering, Hanyang University
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Abstract
In recent years, a rapid increase in demands for the soft magnetic composite parts has been created and it has been tried to improve their properties by various processing methods, alloying elements and compaction parameters. Warm compaction method has been used for the reduction of residual stress, the improvement of magnetic properties and the higher densities. In this work, the effects of warm compaction and polymer binder on magnetic properties of Fe powder core were investigated. The sintering powder, Fe oxide, was ball-milled for 30n hours. And then ball-milled Fe oxide powder was reduced through hydrogen reduction process. The hydrogen reduced Fe powder and polymer binder were mixed by 3-D turbular mixer. And then the mixed powder was warm-compacted. The magnetic properties such as core loss and permeability were measured by B-H curve analyzer.
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