bsuirДоклады БГУИРDoklady BGUIR1729-76482708-0382БГУИР10.35596/1729-7648-2021-19-3-104-109bsuir-3086Research ArticleЭЛЕКТРОНИКА, РАДИОФИЗИКА, РАДИОТЕХНИКА, ИНФОРМАТИКАELECTRONICS, RADIOPHYSICS, RADIOENGINEERING, INFORMATICSElectromagnetic radiation shielding composite coatings based on powdered alumina and ironoxideElectromagnetic radiation shielding composite coatings based on powdered alumina and ironoxidePenialosa OvaliesD. I.Penialosa OvaliesD. I.

Trainee  at  the  Department  of  Information  Protection

Penialosa Ovalies Deivis Isaias, Trainee  at  the  Department  of  Information  Protection

220096, , Minsk, P. Brovki str., 6tel. +375-29-616-83-81 

deivis@bsuir.byBoipravO. V.BoipravO. V.

Associate  Professor, Associate Professor at the  Department  of  Information Protection 

Associate  Professor, Associate Professor at the  Department  of  Information Protection 

220096, , Minsk, P. Brovki str., 6tel. +375-29-616-83-81

TumilovichM. V.TumilovichM. V.

Associate Professor, Head of the Department for Training Highly Qualified Personnel 

Associate Professor, Head of the Department for Training Highly Qualified Personnel 

220096, , Minsk, P. Brovki str., 6tel. +375-29-616-83-81

 

LynkouL. M.LynkouL. M.

Professor,  Honorary  Professor 

Professor,  Honorary  Professor 

220096, , Minsk, P. Brovki str., 6tel. +375-29-616-83-81

Belarusian State University of Informatics and RadioelectronicsBelarusian State University of Informatics and Radioelectronics202101062021193104109Copyright © Penialosa Ovalies D.I., Boiprav O.V., Tumilovich M.V., Lynkou L.M., 20212021Penialosa Ovalies D.I., Boiprav O.V., Tumilovich M.V., Lynkou L.M.Penialosa Ovalies D.I., Boiprav O.V., Tumilovich M.V., Lynkou L.M.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://doklady.bsuir.by/jour/article/view/3086

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.

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.

alum earthelectrocorundumelectromagnetic radiationcomposite coatingiron oxideshieldingReferencesBoiprav 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.)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.)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.)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.)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.)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.)Mishin D.D. [Magnetic materials]. Moscow: Vysshaja shkola; 1991. (In Russ.)Mishin D.D. [Magnetic materials]. Moscow: Vysshaja shkola; 1991. (In Russ.)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.)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.)McNaught A.D., Wilkinson A. Standard conditions for gases. IUPAC. Compendium of Chemical Terminology. Oxford, 1997.McNaught A.D., Wilkinson A. Standard conditions for gases. IUPAC. Compendium of Chemical Terminology. Oxford, 1997.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.)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.)Shapiro D.N. [Electromagnetic shielding]. Dolgoprudny: Intellect; 2010. (In Russ.)Shapiro D.N. [Electromagnetic shielding]. Dolgoprudny: Intellect; 2010. (In Russ.)Slukhotskiy A.E., Nemkov V.S., Pavlov N.A., Bamueer A.V. [Induction heating installations]. Leningrad: Energoizdat; 1981. (In Russ.)Slukhotskiy A.E., Nemkov V.S., Pavlov N.A., Bamueer A.V. [Induction heating installations]. Leningrad: Energoizdat; 1981. (In Russ.)Alekseev A.G., Shtager E.A., Kozyrev S.V. [Physical foundations of Stealth technology]. St. Petersburg: VMM; 2007. (In Russ.)Alekseev A.G., Shtager E.A., Kozyrev S.V. [Physical foundations of Stealth technology]. St. Petersburg: VMM; 2007. (In Russ.)

The authors declare that there are no conflicts of interest present.