Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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A Study on Oxidation-Resistance of Iron Nanoparticles Synthesized by Chemical Vapor Condensation Process

화학기상응축법으로 제조된 철 나노분말의 산화저항에 관한 연구

  • Lee Dong-Won (Powder Materials Research Center, Korea Institute of Machinery and Materials) ;
  • Yu Ji-Hun (Powder Materials Research Center, Korea Institute of Machinery and Materials) ;
  • Bae Jeoung-Hyun (Powder Materials Research Center, Korea Institute of Machinery and Materials) ;
  • Jang Tae-Suk (Division of Materials and Chemical Engineering, Sunmoon University) ;
  • Kim Byoung-Kee (Powder Materials Research Center, Korea Institute of Machinery and Materials)
  • 이동원 (한국기계연구원 신기능재료연구본부 분말재료연구센터) ;
  • 유지훈 (한국기계연구원 신기능재료연구본부 분말재료연구센터) ;
  • 배정현 (한국기계연구원 신기능재료연구본부 분말재료연구센터) ;
  • 장태석 (선물대학교 신소재 공학과) ;
  • 김병기 (한국기계연구원 신기능재료연구본부 분말재료연구센터)
  • Published : 2005.06.01
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Abstract

In order to prevent the oxide formation on the surface of nano-size iron particles and thereby to improve the oxidation resistance, iron nanoparticles synthesized by a chemical vapor condensation method were directly soaked in hexadecanethiol solution to coat them with a polymer layer. Oxygen content in the polymer-coated iron nanoparticles was significantly lower than that in air-passivated particles possessing iron-core/oxide-shell structure. Accordingly, oxidation resistance of the polymer-coated particles at an elevated temperature below $130^{\circ}C$ in air was $10\~40$ times higher than that of the air- passivated particles.

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References

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