Electromagnetic radiation shielding composite coatings based on powdered alumina and ironoxide
https://doi.org/10.35596/1729-7648-2021-19-3-104-109
Abstract
The article presents the results of experimental substantiation of the method for improving the shielding properties of composite coatings based on powdered alumina (electrocorundum, alum earth), which consists in modifying the composition of such coatings by adding to it powdered iron oxide. This experimental substantiation consisted in the development of the technique for obtaining composite coatings based on powdered alumina and iron oxide, the manufacture of the experimental samplesusing the developed technique, measurements of electromagnetic radiation reflection and transmission coefficients values in the frequency range 0.7…17.0 GHz of the manufactured samples; implementation of the comparative analysis of the measured values with the similar values typical for the composite coatings filled with powdered alumina oxides, and composite coatings with the fillers such as powdered iron oxide. The obtained results revealed that by adding powdered iron oxide to the composite coatings based on powdered alumina oxides, it is possible to reduce by 1.0…8.0 dB their electromagnetic radiation transmission coefficient values in the frequency range 0.7…17.0 GHz. In addition, we found that the implementation of the proposed method allows one to decrease by 2.0…20.0 dB the electromagnetic radiation reflection coefficient values in the specified frequency range of the considered composite coatings, if such are applied to metal substrates. We propose to use the composite coatings, obtained on the base of the substantiated method, in order to ensure the electromagnetic compatibility of radio-electronic equipment.
About the Authors
D. I. Penialosa Ovalies
Belarusian State University of Informatics and Radioelectronics
Belarus
Belarus
Penialosa Ovalies Deivis Isaias, Trainee at the Department of Information Protection
220096, , Minsk, P. Brovki str., 6
tel. +375-29-616-83-81
O. V. Boiprav
Belarusian State University of Informatics and Radioelectronics
Belarus
Belarus
Associate Professor, Associate Professor at the Department of Information Protection
220096, , Minsk, P. Brovki str., 6
tel. +375-29-616-83-81
M. V. Tumilovich
Belarusian State University of Informatics and Radioelectronics
Belarus
Belarus
Associate Professor, Head of the Department for Training Highly Qualified Personnel
220096, , Minsk, P. Brovki str., 6
tel. +375-29-616-83-81
L. M. Lynkou
Belarusian State University of Informatics and Radioelectronics
Belarus
Belarus
Professor, Honorary Professor
220096, , Minsk, P. Brovki str., 6
tel. +375-29-616-83-81
References
1. Boiprav O.V., Penialosa Ovalies D.I., Tumilovich M.V., Lynkou L.M. [Method for modifying the composition of non-combustible composite coatings based on powdered alumino oxides for electromagnetic shields]. Pribory=Devices. 2021;1(247):47-54. (In Russ.)
2. Grebennikov I.S., Savchenko A.G., Zaitseva M.P., Muradova A.G.,Yurtov E.V. [Structure and magnetic properties of iron oxide nanopowders and hybrid nanopowders of the “core-shell” type based on them]. Izvestija Rossijskoj Akademii Nauk. Serija fizicheskaja= Bulletin of the Russian Academy of Sciences. Physics. 2018;82(9):1343-1354. (In Russ.)
3. Matrosova G.S., Bobkov A.A., Sosnina S.A., Polunina I.A. [Modification of iron oxide with ethoxylated surfactants]. Sorbcionnye i hromatograficheskie processy= Sorbtsionnye i Khromatograficheskie Protsessy. 2010;10(1):93-102. (In Russ.)
4. Mishin D.D. [Magnetic materials]. Moscow: Vysshaja shkola; 1991. (In Russ.)
5. Penialosa Ovalies D.I., Lynkou L.M., Boiprav O.V., Tumilovich M.V. [Non-combustible composite coating based on electrocorundum powder for electromagnetic shields] // Probory=Devices. 2018;6(216):49-54. (In Russ.)
6. McNaught A.D., Wilkinson A. Standard conditions for gases. IUPAC. Compendium of Chemical Terminology. Oxford, 1997.
7. Neamah M.R.N, Boiprav O.V., Borbotko T.V., Sokolov V.B. [Radioshielding modular structures based on powder materials]. Minsk: Bestprint; 2013. (In Russ.)
8. Shapiro D.N. [Electromagnetic shielding]. Dolgoprudny: Intellect; 2010. (In Russ.)
9. Slukhotskiy A.E., Nemkov V.S., Pavlov N.A., Bamueer A.V. [Induction heating installations]. Leningrad: Energoizdat; 1981. (In Russ.)
10. Alekseev A.G., Shtager E.A., Kozyrev S.V. [Physical foundations of Stealth technology]. St. Petersburg: VMM; 2007. (In Russ.)
Review
For citations:
Penialosa Ovalies D.I., Boiprav O.V., Tumilovich M.V., Lynkou L.M. Electromagnetic radiation shielding composite coatings based on powdered alumina and ironoxide. Doklady BGUIR. 2021;19(3):104-109. (In Russ.) https://doi.org/10.35596/1729-7648-2021-19-3-104-109
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