| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5490080 | Journal of Magnetism and Magnetic Materials | 2017 | 5 Pages |
Abstract
The magnetic insulator Fe3O4-modified flaky Fe85Si9.5Al5.5 (FeSiAl) powders with significantly enhanced electromagnetic wave absorption properties in the frequency range of 2-8Â GHz were prepared by chemical co-precipitation. X-ray diffraction (XRD) and scanning electron microscopy (SEM) have confirmed the formation of nanoparticles Fe3O4 precipitated on the flake-shaped FeSiAl. The electromagnetic measurements of the modified flakes presents a nearly invariable complex permeability and decreased complex permittivity in the 2-8Â GHz, as well as improved impedance matching performance. More importantly, an excellent microwave absorbing performance with the bandwidth (RL <â10Â dB) of 5.36Â GHz is achieved in modified sample with the thickness of 1.5Â mm, which is a promising microwave absorbing material in 2-8Â GHz.
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Authors
Jun He, Lianwen Deng, Sheng Liu, Shuoqing Yan, Heng Luo, Yuhan Li, Longhui He, Shengxiang Huang,