Magnetic properties of Fe-Co-Mo-Cu-B nanocrystalline ribbons with stressing surfaces

被引:3
作者
Butvin, Pavol [1 ]
Butvinova, Beata [1 ]
Svec, Peter, Sr. [1 ]
Vlasak, Gabriel [1 ]
Janickovic, Dusan [1 ]
机构
[1] Slovak Acad Sci, Inst Phys, Bratislava 84511, Slovakia
关键词
Nanostructured materials; Rapid-solidification; Anisotropy; Magnetization; Magnetic measurements; ALLOYS; ANISOTROPY; MICROSTRUCTURE; HETEROGENEITY; HITPERMS; XPS;
D O I
10.1016/j.jallcom.2010.09.154
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
Magnetic properties of Fe-Co-Mo-Cu-B alloy system with Co up to 26 at.% were investigated. After proper thermal treatment, the nanocrystalline grain remains tiny, the density hardly increases, but the room-temperature saturation attains 1.5 T mainly due to a high enough Curie temperature. The generally observed slant hysteresis loops point to ribbon surfaces, which stress the ribbon interior and induce a specific magnetoelastic contribution to hard-ribbon-axis magnetic anisotropy even after vacuum annealing. The effect does not come from cobalt but rather from the lack of silicon. Partial removal of the surfaces resulted in a decrease of the loop tilt. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:997 / 1000
页数:4
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