Improvement of soft magnetic properties for distinctly high Fe content amorphous alloys via longitudinal magnetic field annealing

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:471

Article

Li, Hu^1,2  He, Aina^2,3  Wang, Anding^2,3  Xie, Lei^1,2  Li, Qiang¹  Zhao, Chengliang^2,3  Zhang, Guoyang²  Chen, Pingbo² 

[1] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Xinjiang, Peoples R China

[2] Chinese Acad Sci, Key Lab Magnet Mat & Devices, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

[3] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Zhejiang, Peoples R China

关键词: Amorphous alloy;    Magnetic field annealing;    Soft-magnetic properties;    Magnetic domain;   

DOI  :  10.1016/j.jmmm.2018.09.072

来源: Elsevier

【 摘 要 】

The effects of longitudinal magnetic field annealing on soft-magnetic properties (SMPs) and magnetic domain structure of Fe(82.6-85.7)Si(2-4.9)B(9.2-11.2)P(1.5-2.7)C0.8 amorphous alloys with a distinctly high Fe content of 93.5-95.5 weA., for high B, were investigated. It was found that longitudinal magnetic field annealing could improve soft-magnetic properties (SMPs) of amorphous alloys effectively, except the one with poor thermal stability. Superb magnetic properties containing a minimum coercivity of 0.8 A/m, a maximum effective permeability of 11 x 10(3) at 1 kHz and minimum core loss of 0.052 W/kg (at B-m = 0.9 T and f = 50 Hz) were successfully obtained. Domain structures were characterized with a Magneto-optical Kerr Microscope to unveil the mechanism of SMPs improvement. Stripe domains were observed in the annealed high Fe content amorphous alloy ribbons with optimal soft magnetic properties.

【 授权许可】

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