期刊
SCRIPTA MATERIALIA
卷 157, 期 -, 页码 135-137出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2018.08.014
关键词
Permanent magnet; Nd-Fe-B; Nd70Cu30; interface wetting
类别
资金
- National Natural Science Foundation of China [51171111]
- Science and Technology Commission of Shanghai Municipality [16DZ2260602]
We have studied the wettability and the interface feature of the melted Nd70Cu30 (at.%) alloy on the ab-plane (parallel to the c-axis) and the c-plane (perpendicular to the c-axis) of a sintered Nd Fe B magnet. The wettability of the melted Nd70Cu30 alloy on the ab-plane was much better than that on the c-plane. A zig-zag shaped interface was appeared on the ab-plane while a relatively smooth interface was observed on the c-plane. Shuttle shaped Fe rich phases were generated near the interfaces. The anisotropic distribution of the grain boundary phase in Nd Fe B magnets was discussed based on the experimental results. (C) 2018 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.
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