• Materials Science
  • Published 2009

Preparation and Magnetism Research of Carbon Coated Nano Iron Nanoparticles with Core-shell Structure

@inproceedings{Dayong2009PreparationAM,
  title={Preparation and Magnetism Research of Carbon Coated Nano Iron Nanoparticles with Core-shell Structure},
  author={Yang Da-yong},
  year={2009}
}
Carbon coated iron nanoparticles are produced by the DC carbon discharge method.The structure,size distribution,phase composition and magnetic properties of the particles are investigated by using TEM,XRD and VSM,and annealing carbon coated iron nanoparticles at 200℃ to 800℃.The magnetic hysteresis loops of the particles show a good superparamagnetic characteristic.Mr,Ms and Hc are increased with the increase of Fe content.The result of annealing show that Hc reaches a maximum at 450℃.