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Fe-Si/Fe 혼합분말의 온간성형 및 자성특성Warm Compaction of Fe-Si/Fe Powder Mixture and its Magnetic Property
- Other Titles
- Warm Compaction of Fe-Si/Fe Powder Mixture and its Magnetic Property
- Issue Date
- Aug-2009
- Publisher
- 한국분말야금학회
- Keywords
- Warm compaction; Magnetic property; Nanostructured powder; Powder core
- Citation
- 한국분말야금학회지, v.16, no.4, pp 249 - 253
- Pages
- 5
- Indexed
- KCI
- Journal Title
- 한국분말야금학회지
- Volume
- 16
- Number
- 4
- Start Page
- 249
- End Page
- 253
- ISSN
- 1225-7591
2287-8173
- Abstract
- 3-D shape soft magnetic composite parts can be formed by general compaction method of powder metallurgy. In this study, the results on the high density nanostructured Fe-Si/Fe composite prepared by a warm compaction method were presented. Ball-milled Fe-25 wt.%Si powder, pure Fe powder and Si-polymer were mixed and then the powder mixture was compacted at various temperatures and pressures. Pore free density of samples up to 95% theoretical value has been obtained. The warm compacted sample prepared at 650 ㎫ and 240℃ had highest compaction properties in comparison with other compacts prepared at 300, 400 ㎫ and room temperature and 120℃. The magnetic properties such as core loss, magnetization saturation and coercivity were measured by B-H curve analyzer and vibration sample magnetometer.
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