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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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  • URLhttps://db.koreascholar.com/Article/Detail/2348
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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