| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5490524 | Journal of Magnetism and Magnetic Materials | 2018 | 16 Pages |
Abstract
We examined the effects of Nd-Al alloy addition on the microstructures and magnetic properties of Nd4Fe77.5B18.5 nanocomposite magnets. The Nd4Fe77.5B18.5 nanocomposite magnet without Nd-Al alloy addition showed a coercivity of 0.18Â MA/m, whereas that with the addition of 40% Nd-Al alloy exhibited a high coercivity of 1.44Â MA/m. Microstructural studies revealed that the improvement of the coercivity of the nanocomposite magnets was due to an increase in the amount of the hard magnetic Nd2Fe14B phase. It was found that the Nd-Al alloy reacted with the soft magnetic Fe3B phase in the nanocomposite magnets during annealing and formed the Nd2Fe14B phase.
Related Topics
Physical Sciences and Engineering
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Condensed Matter Physics
Authors
Tetsuji Saito, Shunji Nozaki, Daisuke Nishio-Hamane,