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- W2040553987 abstract "Nanocomposite (Pr,Dy)2Fe14B/α-Fe magnets with compositions Pr8−xDyxFe86B6 (x=0, 0.5, 1, 1.5, and 2) have been synthesized by melt spinning using low wheel speeds in the range from 18 to 21.7 m/s. It has been found that the coercivity is significantly increased by Dy substitution. An optimum coercivity of 6.6 kOe is obtained in the Pr7Dy1Fe86B6 magnet as compared to 4.3 kOe in the Pr8Fe86B6 magnet. As a result, the energy product is increased from 9.1 MGOe in the Pr8Fe86B6 magnet to 16.9 MGOe in the Pr7Dy1Fe86B6 magnet. The reason for this is the finer and more uniform 2:14:1/α-Fe nanoscale microstructure developed in the magnets with Dy substitution. Because of the low wheel speed spinning, the majority of the nanoscale microstructure is crystallized directly out of the melt. The enhancement of magnetic properties by Dy substitution is mainly due to the microstructure refinement which leads to an enhanced exchange coupling between the Pr2Fe14B and α-Fe, whereas the anisotropy increase by the Dy substitution provides only a minor contribution to the enhanced coercivity." @default.
- W2040553987 created "2016-06-24" @default.
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- W2040553987 date "2001-02-15" @default.
- W2040553987 modified "2023-09-24" @default.
- W2040553987 title "Enhancement of magnetic properties of nanocomposite Pr2Fe14B/α-Fe magnets by small substitution of Dy for Pr" @default.
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- W2040553987 doi "https://doi.org/10.1063/1.1344221" @default.
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