| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-635 - C8-636 | |
| DOI | https://doi.org/10.1051/jphyscol:19888287 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-635-C8-636
DOI: 10.1051/jphyscol:19888287
1 Department of Materials Science and Engineering, Beijing University of Iron and Steel Technology, Beijing, China
2 Institute of Physics, Chinese Academy of Science, Beijing China
J. Phys. Colloques 49 (1988) C8-635-C8-636
DOI: 10.1051/jphyscol:19888287
CORRELATION BETWEEN Nd2Fe14B GRAIN BOUNDARIES AND ANNEALING EFFECTS IN COERCIVITY OF Nd-Fe-B MAGNETS
Tang Weizhong1, Zhou Shouzeng1, Wang Run1 et Yang Fuming21 Department of Materials Science and Engineering, Beijing University of Iron and Steel Technology, Beijing, China
2 Institute of Physics, Chinese Academy of Science, Beijing China
Abstract
In sintered Nd-Fe-B magnets different Nd2Fe14B grain boundaries are observed and classified according to morphology, composition and phases present. Compositional defect surface layers of Nd2Fe14B grains, eutectically formed from the Nd-Fe-B-O liquid phase, are cured during annealing which results in a higher coercivity.