Substantiation of the Possibility to Use the Electromagnetic Shields Based on Powdered Aluminum Oxides to Reduce the Electromagnetic Radiation Energy of Electronic Devices

The article introduces the results of the experimental substantiation of the possibility to use the electromagnetic shields based on powdered aluminum oxides to reduce the electromagnetic radiation energy introduced by electronic devices. To achieve this goal, a methodology has been developed for assessing the effect of materials on the electromagnetic radiation level of electronic devices, and a methodology for estimating the radius of the controlled zone of the secondary electromagnetic radiation of computer equipment has been systematized. In accordance with the indicated methods, the study has been carried out, based on the results of which it was determined that electromagnetic shields containing the composite coating based on powdered aluminum oxides and iron oxide provide suppression of the electromagnetic radiation energy of electronic devices, as well as a reduction of up to 2 times the radius of the controlled zone of the secondary electromagnetic radiation of computer equipment. Recommendations for the practical application of the composite coatings based on the powdered alumina and iron oxide have been developed. In accordance with these recommendations, such coatings can be used in the process of manufacturing or improving the technical and functional properties of electromagnetic shields designed to ensure the electromagnetic compatibility of electronic devices, as well as to solve problems related to the information security.