Study on the Absorption Properties of Spinel Type Ferrite Composite Coatings in the Low Frequency

Wen Jie Wang; Qing Jie Jiao; Chong Guang Zang; Xiang Dong Zhu

doi:10.4028/www.scientific.net/AMR.415-417.30

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 415-417Study on the Absorption Properties of Spinel Type...

Study on the Absorption Properties of Spinel Type Ferrite Composite Coatings in the Low Frequency

Abstract:

In the present study magneto-polymer composite coatings are fabricated using nano Zn ferrite, Mn ferrite, Ni ferrite, Zn-Mn ferrite and Zn-Ni ferrite by spraying method. The complex permeabilities, Complex permittivities and microwave absorbing properties within the low frequency of these composites were characterized and investigated. The results showed that the magnetism of the mixed spinel ferrites ( Mn ferrite, Zn-Ni ferrite, Zn-Mn ferrite) are strong but the dielectric properties are weaker, while the magnetism of the normal spinel ferrites (Zn ferrite) is the weakest but provide with a big storage capability of electric energy. The absorbing characteristics of the spinel ferrites are better at 300 kHz-1.5GHz, with minimum absorption of 12.5 dB and the maximum absorption at 480MHz, 1050 MHz and 1400 MHz. The microwave absorbing property of the mixed spinel ferrite Zn-Mn ferrite is best having the RL value being -42.5 dB at 1400GHz.

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Periodical:

Advanced Materials Research (Volumes 415-417)

Pages:

30-34

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.415-417.30

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Online since:

December 2011

Authors:

Wen Jie Wang, Qing Jie Jiao, Chong Guang Zang, Xiang Dong Zhu

Keywords:

Absorbing Properties, Composite Material, Spinel Ferrites

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