Dependence of the magnetic properties on the alignment magnetic field for NdFeB bonded magnets made from anisotropic HDDR powders
1999; Elsevier BV; Volume: 191; Issue: 1-2 Linguagem: Inglês
10.1016/s0304-8853(98)00338-2
ISSN1873-4766
AutoresRui Gao, J.C. Zhang, D.H. Zhang, Ying Dai, Xiao Meng, Z.M. Wang, Y.J. Zhang, Haiqing Liu,
Tópico(s)Electric Motor Design and Analysis
ResumoThe dependence of the hard magnetic properties on the alignment magnetic field for Nd(Fe,Co)B bonded magnets made from anisotropic HDDR powders is studied. The experimental results demonstrate that addition of a little Ga can induce a strong magnetic anisotropy in the HDDR magnetic powders. The application of an alignment magnetic field while the powders are bonded can increase the remanence, the coercivity and the maximum energy product in different degrees and the hard magnetic properties of the magnet are obviously improved with increasing alignment field.
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