Effect of Aging Treatment on the Microstructures and the Magnetic Properties of the Sintered Nd-Fe-B Magnet

Xiao Li Wang; Li Na Zhao; Cong Hui Si; Kai Hong Ding; Sheng Li Cui; Yong Cong Sun; Mu Sen Li

doi:10.4028/www.scientific.net/AMR.886.66

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 886Effect of Aging Treatment on the Microstructures...

Effect of Aging Treatment on the Microstructures and the Magnetic Properties of the Sintered Nd-Fe-B Magnet

Abstract:

The effect of aging processes on the microstructures and the magnetic properties of the sintered Nd-Fe-B magnet was investigated. The experimental results showed that the grain boundaries of the magnet treated by the two-stage aging processes became clear,smooth and continuous. Meanwhile, the Nd-rich grain boundary phase was precipitated at the grain boundary of the main phase to form a distinct phase separated from the main magnetic phase. The changes of the grain boundary microstructures of the sintered Nd-Fe-B magnet caused significant increase of its intrinsic coercive force.

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Periodical:

Advanced Materials Research (Volume 886)

Pages:

66-70

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.886.66

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Online since:

January 2014

Authors:

Xiao Li Wang, Li Na Zhao, Cong Hui Si, Kai Hong Ding, Sheng Li Cui, Yong Cong Sun, Mu Sen Li*

Keywords:

Aging, Magnetic Property, Microstructure, Sintered Nd-Fe-B Magnet

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