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Electromagnetic radiation shielding composite coatings based on powdered alumina and ironoxide

https://doi.org/10.35596/1729-7648-2021-19-3-104-109

Полный текст:

Аннотация

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.

Об авторах

D. I. Penialosa Ovalies
Belarusian State University of Informatics and Radioelectronics
Беларусь

Trainee  at  the  Department  of  Information  Protection



O. V. Boiprav
Belarusian State University of Informatics and Radioelectronics
Беларусь

Associate  Professor, Associate Professor at the  Department  of  Information Protection 



M. V. Tumilovich
Belarusian State University of Informatics and Radioelectronics
Беларусь

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



L. M. Lynkou
Belarusian State University of Informatics and Radioelectronics
Беларусь

Professor,  Honorary  Professor 



Список литературы

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Для цитирования:


Penialosa Ovalies D.I., Boiprav O.V., Tumilovich M.V., Lynkou L.M. Electromagnetic radiation shielding composite coatings based on powdered alumina and ironoxide. Доклады БГУИР. 2021;19(3):104-109. https://doi.org/10.35596/1729-7648-2021-19-3-104-109

For citation:


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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ISSN 1729-7648 (Print)
ISSN 2708-0382 (Online)