NDLI: Studies on Magnetic Properties and Ball-Milling Process of Fe–Si

Content Provider	IEEE Xplore Digital Library
Author	Zhou, X.L. Liang, D.F. Wang, X.
Copyright Year	1965
Abstract	Flake-shaped Fe-Si-Cr alloy powders were prepared by crushing alloy ingots and the ball milling method. Magnetic properties of Fe-Si-Cr alloy powders with the nominal compositions of Fe_81.4+xSi_17-xCr_1.6 (x = 0, 2, 4, and 6) and the different values of milling time (0 to 120 h) were investigated. A scanning electron microscope, X-ray diffraction, and a vibrating samples magnetometer were used to characterize Fe-Si-Cr alloy powders. It is observed that, with the increase of parameter x, the permeability of Fe_81.4+xSi_17-xCr_1.6 (x = 0, 2, 4, and 6) powders first increases and then decreases in 0.5-2 GHz, meanwhile the peaks of the imaginary part of the magnetic permeability (μ'') transfer to the lower frequency in 0.5-6 GHz. The saturation magnetic (M_S) and the coercivity (H_C) were also investigated. The value of M_S increases from 110 emu/g (x = 0) to 148 emu/g (x = 6), while the value of H_C changes in the opposite trend from 30.7 Oe (x = 0) to 25.5 Oe (x = 6). For Fe_85.4Si₁₃Cr_1.6 alloy powders with the increase of milling time, the peaks of μ'' transfer to the higher frequency, while the values of μ'' first increase and then decrease in 0.5-10 GHz. We attributed this to the change of the aspect ratio. A large aspect ratio increases planar anisotropy, which can enhance the magnetic permeability of the material. It is observed that the imaginary part of the magnetic permeability is 3.91 with x = 4 and milling time = 48 h at 1.1 GHz.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	4
Page Count	4
File Size	1837282
File Format	PDF
ISSN	00189464
Volume Number	51
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Powders Milling Permeability Silicon Iron Magnetic hysteresis permeability Fe-Si-Cr flake ball-milling Ball milling Fe–Si–Cr
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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