Investigation of phase composition and remanence enhancement in rapidly quenched Nd-9(Fe, Co)(85)B-6 alloys

被引：26

作者：

Gabay, AM

Popov, AG

Gaviko, VS

Belozerov, YV

Yermolenko, AS

Shchegoleva, NN

机构：

[1] Institute of Metal Physics, Ekaterinburg 620219

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1996年 / 237卷 / 1-2期

基金：

俄罗斯科学基金会;

关键词：

nanocomposite magnets; exchange coupled magnets; remanence enhancement;

D O I：

10.1016/0925-8388(95)02128-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Melt-spun and annealed Nd-9(Fe1-xCox)(85)B-6 alloys with x=0-0.4 have been studied by means of X-ray diffraction, transmission electron microscopy, thermomagnetic analysis and magnetic measurements. Both quenching of the alloys and crystallization of the amorphous phase are accompanied by the formation of a metastable phase of TbCu7 type. When 0 less than or equal to x less than or equal to 0.3, short-time annealing at about 680 degrees C results in coexistence of nanocrystalline exchange coupled Nd-2(Fe,Co)(14)B and b.c.c. Fe-Co phases. Because of the stabilizing effect of Co on the 1:7 phase, the annealing that is optimal with respect to the sizes of the alpha grains is found to be insufficient for complete disappearance of the 1:7 phase in Co substituted alloys.

引用

页码：101 / 107

页数：7

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