Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Fabrication and Magnetic Properties of A New Fe-based Amorphous Compound Powder Cores

  • Xiangyue, Wang (Central Iron and Steel Research Institute) ;
  • Feng, Guo (Center of Advanced Technology and Materials Co, Ltd.) ;
  • Caowei, Lu (Central Iron and Steel Research Institute) ;
  • Zhichao, Lu (Central Iron and Steel Research Institute) ;
  • Deren, Li (Central Iron and Steel Research Institute) ;
  • Shaoxiong, Zhou (Central Iron and Steel Research Institute)
  • Received : 2011.08.02
  • Accepted : 2011.09.09
  • Published : 2011.09.30
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Abstract

A new Fe-based amorphous compound powder was prepared from Fe-Si-B amorphous powder by crushing amorphous ribbons as the first magnetic component and Fe-Cr-Mo metallic glassy powder by water atomization as the second magnetic component. Subsequently by adding organic and inorganic binders to the compound powder and cold pressing, the new Fe-based amorphous compound powder cores were fabricated. This new Fe-based amorphous compound powder cores combine the superior DC-Bias properties and the excellent core loss. The core loss of 500 kW/$m^3$ at $B_m$ = 0.1T and f = 100 kHz was obtained When the mass ratio of FeSiB/FeCrMo equals 3:2, and meanwhile the DC-bias properties of the new Fe-based amorphous compound powder cores just decreased by 10% compared with that of the FeSiB powder cores. In addition, with the increasing of the content of the FeCrMo metallic glassy powder, the core loss tends to decrease.

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References

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