Paper Title:
Effect of Mini Ga Doping in Nanocrystalline Nd4.5(Fe,Co)77.5B18 Magnet on Coercivity
  Abstract

The microstructure and the coercivity of nanocomposite Nd4.5Fe76.5-xGaxCo1.0B18 (x=0~0.6at%)bonded magnets were studied. The results showed that addition of small amount of Ga in Nd4.5Fe76.5-xGaxCo1.0B18 made the grains finer and more uniform. A notable peak of coercivity was observed in the variational curve of coercivity with annealing time when Ga content was low (x=0.2). This phenomenon could be explained by the microstructure and the exchange coupling interaction of two-phase nanocomposite.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
2147-2150
DOI
10.4028/www.scientific.net/MSF.475-479.2147
Citation
M. Zhu, J. J. Zhang, W. Chen, X. M. Li, S. Dong, W. Li, "Effect of Mini Ga Doping in Nanocrystalline Nd4.5(Fe,Co)77.5B18 Magnet on Coercivity", Materials Science Forum, Vols. 475-479, pp. 2147-2150, 2005
Online since
January 2005
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