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Information × Registration Number 0221U105954, 0121U111372 , R & D reports Title Composite materials based on ceramic for protection against electromagnetic radiation popup.stage_title Head Lisachuk Heorhii V., Registration Date 14-09-2021 Organization National Technical University "Kharkiv Polytechnic Institute" popup.description2 The object of research is a promising ceramic composite material developed on the basis of traditional components, electrically conductive, ferroelectric and magnetic additives, which is characterized by properties that attenuate electromagnetic radiation of the radio frequency range. The subject of research is the dependence of material characteristics, namely: resistivity, dielectric constant and magnetic permeability on the number and nature of electrically conductive or ferroelectric and magnetic additives and the method of its distribution in the dielectric matrix. The purpose of the work is to develop compositions and technological parameters of obtaining electrically conductive and ferromagnetic composite ceramics, which is manufactured at the rate of firing, with an effective protective effect against the effects of electromagnetic radiation. Research methods - methods of mathematical modeling and experimental studies of physical-mechanical and electromagnetic properties of ceramic composite materials. Results and their novelty: - it is determined that in the conditions of high-speed firing mode to obtain electrically conductive composite ceramics it is necessary to use an electrically conductive additive - silicon carbide, and to obtain magnetic composite coatings it is necessary to use a magnetic additive - cobalt ferrite. - it is proved that the use of electrically conductive (silicon carbide) and magnetic (cobalt ferrite) additives allows to obtain electrically conductive ceramic composite materials, which by the value of resistivity (?v = 8.84 · 105 Ohm · m) belong to the class of semiconductors and magnetic ceramic composite coatings, which according to the value of magnetic permeability (? = 5,1-5,18) belong to the class of magnetic materials with preservation of physical-mechanical and operational properties at the level of the State standard; - based on the results of the developed scientific provisions and the obtained experimental data, a rationa  Product Description popup.authors Voloshchuk Valentyna V Zakharov Artem V Konotopskyi Leonid Ye Kryvobok Ruslan V Lisachuk George V Maistat Mykyta S Sakhnenko Mykola D Tur (Sachanova) Yuliia I popup.nrat_date 2021-09-14 Close