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摘要:
PrFeB/PrCo5 hybrid magnet has excellent magnetic properties and better thermal stability. In this paper, anisotropic nanocomposite PrFeB/PrCo5 hot-deformed magnets with and without doping PrCu eutectic alloy were prepared by spark plasma sintering (SPS) technique. With the addition of 6 wt% PrCu, the coercivity of the magnet (10.8 kOe) is almost double than that of undoped magnet (5.6 kOe), with an enhancement of the remanence (9.1 kG versus 8.4 kG). For the magnet with PrCu, the nonmagnetic PrCu phase is mainly distributed in the phase boundary regions, introducing a coupling effect of demagnetization on the hard-magnetic phases, which obtained an enhancement of the coercivity. The deformed Pr2Fe14B grains of the hybrid magnet have elongated platelet shapes, but the PrCo5 grains are not easy to be deformed, which affects the overall degree of deformation texture of the hybrid magnet. This implies that there is uncoordinated deformation for the PrFeB/PrCo5 hybrid magnet.
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来源 :
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN: 0304-8853
年份: 2020
卷: 495
2 . 7 0 0
JCR@2022
ESI学科: PHYSICS;
ESI高被引阀值:100