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Keywords = ferroxplana hexaferrites

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14 pages, 2983 KiB  
Article
Static and Dynamic Magnetic Properties of Polycrystalline Hexaferrites of the Ba2Ni2-xCuxFe12O22 System
by Victor A. Zhuravlev, Dmitry V. Wagner, Olga A. Dotsenko, Katerina V. Kareva, Elena V. Zhuravlyova, Anna S. Chervinskaya, Grigoriy E. Kuleshov and Alexander S. Suraev
Electronics 2022, 11(17), 2759; https://doi.org/10.3390/electronics11172759 - 1 Sep 2022
Cited by 8 | Viewed by 1832
Abstract
The paper presents the results of a study of the phase composition and the main static magnetic characteristics: saturation magnetization, residual magnetization and coercive force of polycrystalline ferroxplana type hexaferrites of the Ba2Ni2-xCuxFe12O22 [...] Read more.
The paper presents the results of a study of the phase composition and the main static magnetic characteristics: saturation magnetization, residual magnetization and coercive force of polycrystalline ferroxplana type hexaferrites of the Ba2Ni2-xCuxFe12O22 (0 ≤ x ≤ 2.0) system. These materials have high magnetic permeability and are promising for use as substrates for magnetic antennas and radar absorbing materials. It is shown that thermograms of the initial permeability can be used to quickly assess the presence of impurity magnetic phases in complex oxide ferrimagnets. The permeability and permittivity spectra of textured and non-textured composite samples with the powder of the Ba2NiCuFe12O22 hexaferrite are measured in the microwave frequency range. The radar absorbing properties of the obtained composites are analyzed. It is shown that magnetic texturing leads to an increase in the operating frequency band of an absorber with RL < −10 dB from 6.1 GHz to 8.2 GHz and a deepening of the loss minimum from −21 dB to −27 dB. Full article
(This article belongs to the Section Electronic Materials, Devices and Applications)
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