Electrophysical and acoustic properties of magnetic elastomers structured by an external magnetic field
- Autores: Kuznetsova I.E.1, Kolesov V.V.1, Zaitsev B.D.2, Fionov A.S.1, Shihabudinov A.M.2, Stepanov G.V.3, Kramarenko E.Y.4
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Afiliações:
- Kotel’nikov Institute of Radio Engineering and Electronics
- Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
- State Research Institute for Chemistry and Technology of Organoelement Compounds
- Faculty of Physics
- Edição: Volume 81, Nº 8 (2017)
- Páginas: 945-949
- Seção: Proceedings of the Russian Academy of Sciences’ Research Board Seminar on Acoustics“Topical Achievements in Acoustics: Achievements in Acoustics 2016”
- URL: https://journals.rcsi.science/1062-8738/article/view/185149
- DOI: https://doi.org/10.3103/S1062873817080184
- ID: 185149
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Resumo
Magnetoactive elastomers are promising for use in designing of magnetically operated devices for signal processing and sensors. The results from studying the electrophysical and acoustic properties of new magnetoactive elastomers structured by a nonuniform magnetic field are presented. It is shown that the prestructuring of the magnetic disperse filler by a magnetic field during composite synthesis substantially improves the coefficient of the transmission of electromagnetic radiation through the sample. The effect gets stronger as the mass fraction of filler increases. As the filler concentration grows, the transmission coefficient falls by 50%, and the ref lection coefficient grows by a factor of 150%. The longitudinal elastic modulus and the density vary within the ranges of 1.4–1.8 GPa and 2485–3362 kg m–3, respectively, depending on the magnetic filler concentration and the sample’s structuring. The obtained results demonstrate the potential of usinf structured magnetoactive elastomers as radar absorbing materials.
Sobre autores
I. Kuznetsova
Kotel’nikov Institute of Radio Engineering and Electronics
Autor responsável pela correspondência
Email: kuziren@yandex.ru
Rússia, Moscow, 125009
V. Kolesov
Kotel’nikov Institute of Radio Engineering and Electronics
Email: kuziren@yandex.ru
Rússia, Moscow, 125009
B. Zaitsev
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: kuziren@yandex.ru
Rússia, Saratov, 410019
A. Fionov
Kotel’nikov Institute of Radio Engineering and Electronics
Email: kuziren@yandex.ru
Rússia, Moscow, 125009
A. Shihabudinov
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: kuziren@yandex.ru
Rússia, Saratov, 410019
G. Stepanov
State Research Institute for Chemistry and Technology of Organoelement Compounds
Email: kuziren@yandex.ru
Rússia, Moscow, 105118
E. Kramarenko
Faculty of Physics
Email: kuziren@yandex.ru
Rússia, Moscow, 119991
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