Grain boundary wetting in the NdFeB-based hard magnetic alloys

被引：0
|
作者：
B. B. Straumal
Yu. O. Kucheev
I. L. Yatskovskaya
I. V. Mogilnikova
G. Schütz
A. N. Nekrasov
B. Baretzky
机构：
[1] Russian Academy of Sciences,Institute of Solid State Physics
[2] National University of Science and Technology “MISiS”,Institute of Experimental Mineralogy
[3] Max-Planck Institut für Intelligente Systeme (Former Institut für Metallforschung),undefined
[4] Russian Academy of Sciences,undefined
[5] Karlsruher Institut für Technologie (KIT),undefined
[6] Institut für Nanotechnologie,undefined
来源：
Journal of Materials Science | 2012年 / 47卷
关键词：
Contact Angle; Complete Wetting; Magnetic Performance; Polycrystalline Solid; Generic Phase Diagram;
D O I：
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中图分类号：
学科分类号：
摘要：
Since the end of 1980s, NdFeB-based hard magnetic alloys have been the materials with the highest available magnetic performance. NdFeB-based magnets are produced either by liquid-phase sintering or by melt spinning. In the present investigation, NdFeB alloys quenched after annealing in the semi-liquid state are used to study the wetting of Nd2Fe14B grain boundaries by a Nd-rich liquid phase. It is shown that a transition from partial wetting to complete wetting occurs with increasing temperature. The results are compared with the data in the literature for NdFeB-based alloys processed by liquid-phase sintering. The relation between wetting properties and magnetic performance of these alloys is also discussed.
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页码：8352 / 8359
页数：7
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