Grain boundary wetting in the NdFeB-based hard magnetic alloys

被引：38

作者：

Straumal, B. B. ^{[1
,2
,3
,4
]}

Kucheev, Yu. O. ^{[1
,2
]}

Yatskovskaya, I. L. ^{[1
]}

Mogilnikova, I. V. ^{[1
,2
]}

Schuetz, G. ^{[3
]}

Nekrasov, A. N. ^{[5
]}

Baretzky, B. ^{[4
]}

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia

[2] Natl Univ Sci & Technol MISiS, Moscow 119991, Russia

[3] Max Planck Inst Intelligente Syst, D-70569 Stuttgart, Germany

[4] KIT, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany

[5] Russian Acad Sci, Inst Expt Mineral, Moscow 142432, Russia

来源：

JOURNAL OF MATERIALS SCIENCE | 2012年 / 47卷 / 24期

基金：

俄罗斯基础研究基金会;

关键词：

B SINTERED MAGNETS; AU-SAPPHIRE INTERFACES; NICKEL-DOPED TUNGSTEN; PERCENT SI ALLOY; CORROSION-RESISTANCE; INTERGRANULAR FILMS; PHASE-TRANSITIONS; ZN-SN; CERAMIC COMPOSITES; I SUPERCONDUCTORS;

D O I：

10.1007/s10853-012-6618-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

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.

引用

页码：8352 / 8359

页数：8

共 107 条

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