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- 기계화학적 합금화된 나노 Fe-6.5Si 분말의 자기 펄스압에 의한 동적성형
- 이근희, 이창규, 김흥회, 윤종운, 이기선
- Dynamic Compaction of Mechanochemically Alloyed Fe-Si Nano Powders by Magnetic Pulsed Pressure
- G.-H. Lee, C.-K. Rhee, W.-W. Kim, J.-W. Yun, K.-S. Lee
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Journal of Korean Powder Metallurgy Institute 2005;12(1):24-29
DOI: https://doi.org/10.4150/KPMI.2005.12.1.024
1한국원자력연구소 원자력재료기술개발부
2한국원자력연구소 원자력재료기술개발부
3한국원자력연구소 원자력재료기술개발부
4국립공주대학교 신소재공학부 재료공학과
5국립공주대학교 신소재공학부 재료공학과
1Korea Atomic Energy Research Institute
2Korea Atomic Energy Research Institute
3Korea Atomic Energy Research Institute
4Kongju National University
5Kongju National University
2한국원자력연구소 원자력재료기술개발부
3한국원자력연구소 원자력재료기술개발부
4국립공주대학교 신소재공학부 재료공학과
5국립공주대학교 신소재공학부 재료공학과
1Korea Atomic Energy Research Institute
2Korea Atomic Energy Research Institute
3Korea Atomic Energy Research Institute
4Kongju National University
5Kongju National University
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Abstract
Nano Fe-6.5wt%Si powders have been synthesized by mechano-chemical process (MCP) for an application of soft magnetic core. Owing to hard and brittle characteristics of Fe-6.5Si nano powders having large surface area, it is very difficult to reach high density more than 70% of theoretical density (~7.4 g/cm_3) by cold compaction. To overcome such problem a magnetic pulsed compaction (MPC), which is one of dynamic compaction techniques, was applied. The green density was achieved about 78% (~5.8 g/cm_3) by MPC at room temperature.
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