1. ELECTROMAGNETIC MICROWAVE PROPERTIES OF Fe82B17Cu1 BALL MILLED ALLOY.
- Author
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TIAN, N., FAN, X. D., WANG, J. W., YOU, C. Y., LU, Z. X., and GE, L. L.
- Subjects
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ELECTROMAGNETIC waves , *MICROWAVES , *IRON alloys , *BALL mills , *SATURATION (Chemistry) , *MAGNETIZATION , *MAGNETIC anisotropy - Abstract
High saturation magnetization and magnetic anisotropy are helpful for getting a high frequency electromagnetic microwave absorption performance. The α-Fe possesses a high saturation magnetization. Fe-B phases exhibit a relatively higher magnetic anisotropy and higher resistivity than α-Fe simultaneously. In this work, we made nanocrystalline powders of Fe82B17Cu1, mainly consisting of α-Fe and Fe2B phases, by ball milling and post-annealing. Electromagnetic microwave characterization shows that Fe82B17Cu1 powders possess a relative high permeability and considerable permittivity. Due to a good electromagnetic impedance matching, a good electromagnetic microwave absorption property (RL < -35 dB) has been achieved at 3.6 GHz. The experimental frequency and the matching thickness are coincident with the quarter wavelength matching condition. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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