INFLUENCE OF HEAT TREATMENT ON MAGNETIC PROPERTIES OF NANOCRYSTALLINE Nd9Fe84Zr1B6 RIBBONS RECEIVED BY RAPID SOLIDIFICATION METHOD

被引：3
|
作者：
Ceglarek, A. [1 ]
Plusa, D. [1 ]
Pawlik, P. [1 ]
Dospial, M. [1 ]
机构：
[1] Czestochowa Tech Univ, Inst Phys, PL-42200 Czestochowa, Poland
来源：
ARCHIVES OF METALLURGY AND MATERIALS | 2012年 / 57卷 / 01期
关键词：
nanocomposites; rapid solidification method; Nd-Fe-B alloys; hard magnetic materials; nanocrystalline magnets;
D O I：
10.2478/v10172-012-0015-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of the annealing on the phase composition and magnetic properties of nanocomposite melt-spun Nd9Fe84Zr1B6 ribbons has been investigated. From the X-ray diffraction studies confirmed be thermomagnetic curves measurements results that the microstructure of the material investigated is composed of a mixture of magnetically hard Nd2Fe14B and soft alpha-Fe, Fe3B nanosized grains. The small amount of undesirable Nd2Fe23B3 metastable phase has been found which do not decompose at the highest annealing temperature. The hysteresis loop measurements certify that the ribbon annealed at 863K show the best coupling between the hard and soft magnetic phases and thus the highest coercivity of 0.38T. The grain sizes increase with increasing annealing temperature causing the coercivity to be decrease.
引用
收藏
页码：229 / 232
页数：4
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