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기계화학적 합금화된 나노 Fe-6.5Si 분말의 자기 펄스압에 의한 동적성형

Dynamic Compaction of Mechanochemically Alloyed Fe-Si Nano Powders by Magnetic Pulsed Pressure

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참고문헌

주제분류금속공학

초록

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/cm3) 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/cm3) by MPC at room temperature.

참고문헌 (3)

  1. "J. Appl. Phys.", 67, pp.5568~ (1990)
  2. "Chemical Thermodynamics of Materials", pp.512~ (1993), New York
  3. "Nanostructured Materials", pp.55~ (2002), Kluwer academic publishers

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