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http://dx.doi.org/10.4150/KPMI.2009.16.4.249

Warm Compaction of Fe-Si/Fe Powder Mixture and its Magnetic Property  

Kim, Se-Hoon (Division of Materials Science and Engineering, Hanyang University)
Suk, Myung-Jin (Department of Materials & Metallurgical Engineering, Kangwon National University)
Kim, Young-Do (Division of Materials Science and Engineering, Hanyang University)
Publication Information
Journal of Powder Materials / v.16, no.4, 2009 , pp. 249-253 More about this Journal
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 MPa and 240$^{\circ}C$ had highest compaction properties in comparison with other compacts prepared at 300, 400 MPa and room temperature and 120$^{\circ}C$. The magnetic properties such as core loss, magnetization saturation and coercivity were measured by B-H curve analyzer and vibration sample magnetometer.
Keywords
Warm compaction; Magnetic property; Nanostructured powder; Powder core;
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Times Cited By KSCI : 1  (Citation Analysis)
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