Investigation of the wettability and the interface feature of the melted Nd70Cu30 alloy on the surface of a sintered Nd‑Fe‑B magnet
Investigation of the wettability and the interface feature of the melted Nd70Cu30 alloy on the surface of a sintered Nd‑Fe‑B magnet
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DOI：
10.1016/j.scriptamat.2018.08.014
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发表时间：
2018-12
影响因子：
6
通讯作者：
Fugang Chen;Yunxue Jin;Ye Cheng;Lanting Zhang
中科院分区：
文献类型：
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作者：
Fugang Chen;Yunxue Jin;Ye Cheng;Lanting Zhang
研究了熔融Nd70Cu30(at.%)合金在烧结NdFeB磁体的ab面(平行于c轴)和c面(垂直于c轴)上的润湿性和界面特征。Nd70Cu30合金熔体在ab面上的润湿性远好于在c面上的润湿性。在ab平面上出现了一个锯齿形的界面，而在c平面上观察到了一个相对光滑的界面。界面附近生成了梭形富Fe相。根据实验结果，讨论了NdFeB磁体晶界相的各向异性分布。
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 Nd70Cu30alloy 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.