Abstract
The microstructural and magnetic property changes of DyF 3-doped (Nd 26.06, Dy 6.51)-Fe bal -B 0.97- M 2.39 (wt.%) (M Cu, Al, Co, and Nb) sintered magnets as functions of the sintering conditions were studied. The sintering conditions for the optimum core-shell microstructure were determined. When the magnets were sintered at 1050°C for 4 h, a coercivity of 35.1 kOe was obtained without sacrificing the remanence. When the magnets were doped with DyF 3, the formation of the RE-rich phase (Nd-Dy-O) was effectively suppressed and, hence, saving the Dy. In addition, the formation of a cubic-NdOF triple-junction phase (TJP) improves the interface uniformity and enhances the coercivity.
| Original language | English |
|---|---|
| Article number | 07A707 |
| Journal | Journal of Applied Physics |
| Volume | 111 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2012 Apr 1 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Park, S. E., Kim, T. H., Lee, S. R., Namkung, S., & Jang, T. S. (2012). Effect of sintering conditions on the magnetic and microstructural properties of Nd-Fe-B sintered magnets doped with DyF 3 powders. Journal of Applied Physics, 111(7), [07A707]. https://doi.org/10.1063/1.3672246