Magnetically soft nanocrystalline powders of Fe73.5Cu1Nb3Si13.5B9 obtained-by mechanical alloying and ball milling

被引：0
|
作者：
Kulik, T [1 ]
Oleszak, D [1 ]
Wisniewski, A [1 ]
机构：
[1] Warsaw Univ Technol, Fac Mat Sci & Engn, PL-02507 Warsaw, Poland
来源：
METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS | 2003年
关键词：
ball milling; finemet alloy; mechanical alloying; soft magnetic alloys;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Magnetically, soft nanocrystalline powders of Finemet alloy (Fe73.5Cu1Nb3Si13.5B9) were produced applying three techniques: (i) mechanical alloying of elemental powder mixtures, (ii) ball milling of crystalline ingots produced by induction melting of constituent elements of the alloy and (iii) ball milling of partially nanocrystalline ribbons (obtained initially as amorphous and nanocrystallized by annealing at 550degreesC for 1 h). Strong influence of powder manufacture method and milling time on magnetic softness was observed. Ball milled nanocrystalline ribbon exhibited the lowest coercive field Hc, while mechanically alloyed elemental powders - the highest one. In all cases Hc increased with processing time. The observed magnetic hardening of very soft nanocrystalline Finemet ribbon with the milling time was due to the decreasing size of the powder particles.
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页码：659 / 664
页数：6
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