ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Pr-Fe-B magnets with high performance based on 2:14:1 structure were investigated. The effect of fabricating processes on the oxygen content and on the magnetic properties was studied. The coercivity iHc decreases, but the Br and (BH)max of the magnets increase with the decrease of the Pr content. The decrease in the α-Fe content of the alloys annealed at 1000 °C for more than 360 h results in the enhancement of the magnetic properties of the magnets. Under the optimum conditions, the magnetic properties for Pr14Fe79.5B6.5 magnets are found to be iHc=656 kA/m, Br=1.42 T, (BH)max=374 kJ/m3. The microstructures of the magnets were investigated. The effect of the secondary phases in the grain boundary on the coercivity of the magnets was studied.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.355427
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