Affiliation:
1. School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, China
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 Fe 82 B 17 Cu 1, mainly consisting of α- Fe and Fe 2 B phases, by ball milling and post-annealing. Electromagnetic microwave characterization shows that Fe 82 B 17 Cu 1 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.
Publisher
World Scientific Pub Co Pte Lt
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics
Cited by
2 articles.
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