Coercivity and Magnetic Anisotropy of (Fe0.76Si0.09B0.10P0.05)97.5Nb2.0Cu0.5 Amorphous and Nanocrystalline Alloy Produced by Gas Atomization Process

被引：8
作者：
Alvarez, Kenny L. [1 ,2 ,3 ]
Martin, Jose Manuel [1 ,2 ]
Burgos, Nerea [1 ,2 ]
Ipatov, Mihail [4 ]
Dominguez, Lourdes [5 ]
Gonzalez, Julian [6 ]
机构：
[1] Univ Navarra, CEIT IK4, P de Manuel Lardizabal 15, San Sebastian 20018, Spain
[2] Univ Navarra, Tecnun, P de Manuel Lardizabal 15, San Sebastian 20018, Spain
[3] Pontificia Univ Catolica Valparaiso, Escuela Ingn Mecan, Ave Brasil 2950, Valparaiso, Chile
[4] Univ Basque Country, SGIker Magnet Measurements, Ave Tolosa 72, San Sebastian 20018, Spain
[5] Univ Basque Country, Dept Appl Phys 1, Sch Engn, Plaza Europa S-N, San Sebastian 20018, Spain
[6] Univ Basque Country, Dept Mat Phys, Fac Chem, P de Manuel Lardizabal 3, San Sebastian 20018, Spain
来源：
NANOMATERIALS | 2020年 / 10卷 / 05期
关键词：
gas atomization; amorphous and nanocrystalline materials; magnetic characterization; anisotropy field; soft magnetic materials; GRAIN-SIZE DEPENDENCE; POWDER; CORES; MODEL;
D O I：
10.3390/nano10050884
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We present the evolution of magnetic anisotropy obtained from the magnetization curve of (Fe0.76Si0.09B0.10P0.05)(97.5)Nb2.0Cu0.5 amorphous and nanocrystalline alloy produced by a gas atomization process. The material obtained by this process is a powder exhibiting amorphous character in the as-atomized state. Heat treatment at 480 degrees C provokes structural relaxation, while annealing the powder at 530 degrees C for 30 and 60 min develops a fine nanocrystalline structure. Magnetic anisotropy distribution is explained by considering dipolar effects and the modified random anisotropy model.
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页数：9
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