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화학용액 혼합과 수소환원법을 이용한 나노구조 Fe-Co 합금분말의 제조 KCI 등재

Chemical Solution Mixing and Hydrogen Reduction Method for Fabrication of Nanostructured Fe-Co Alloy Powders

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한국분말야금학회지 (Journal of Korean Powder Metallurgy Institute)
한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

In this study, chemical solution mixing and hydrogen reduction method was used to fabricate nanostructured alloy powders. Fe-Co chloride mixture, FeCl and COCI with 99.9% purity, were reduced in hydrogen atmosphere. Nanostructured Fe-Co alloy powders with a grain size of 50 nm were successfully fabricated. Magnetic properties of fabricated (x=0, 10, 30, 50, 70, 100) alloy powders with the same grain size were measured because size factor can affect magnetic properties. Coercivity of Fe-Co alloy powders were increased with increasing Co contents. Maximum value of coercivity in various Co contented Fe-Co alloy powders with similar grain size was 125 Oe at Fe. Saturation magnetization value at FeCo composition showed maximum value of 219 emu/g and saturation magnetization value decreased with increasing Co contents and minimum value of 155 emu/g was observed at Co.

저자
  • 박광현
  • 박현우
  • 이백희
  • 장시영
  • 이정근
  • 김영도