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Information × Registration Number 0222U002295, 0121U112085 , R & D reports Title Absorption materials based on carbon-containing shell structures for the microwave range of electromagnetic radiation. popup.stage_title Head Matzui Lyudmila Yu., Доктор фізико-математичних наук Registration Date 11-02-2022 Organization Taras Shevchenko National University of Kyiv popup.description2 Object of research - Carbon-containing magnetic shell structures and magnetoelectric polymer composites based on them. The aim of the project is to develop the physical basis for the creation of new magnetoelectric polymer composites (MPC) based on carbon-containing magnetic shell structures (CMOS) and to establish patterns of abnormally high absorption characteristics of electromagnetic radiation (EMR) in the shortwave part of microwave experimental studies. the relationship between the methods of production, structure, phase composition of CMOS, the nature of their spatial distribution in the CM and electrodynamic properties. As part of the first stage of research, methods were developed for the synthesis of carbon-containing shell structures of different morphology and phase composition, namely: (i) dielectric core / carbon shell using ultra-high molecular weight polyethylene 100 μm, and as shells - carbon nanoparticles of different morphology (nanotubes, graphite nanoplates GNP); (ii) a dielectric nucleus / magnetic shell, where the dielectric nucleus is ultra-high molecular weight polyethylene (UVPE) with a particle size of 100 μm and the shell is carbon nanoparticles decorated with magnetic nanoparticles (Ni20Fe80; (iii) dielectric core / magnetic shell, where silica gel (SiO2) particles with a size of 75-245 μm with a large specific surface area, S = 480-540 m2 / g were used as the dielectric core. (v) a multicomponent core / dielectric shell / carbon (modified with magnetic metals), where the multicomponent core is 100-300 μm polycarbonate globules with graphite nanoplates decorated with NiFe nanoparticles inside and the shell formed or graphite nano.  Product Description popup.authors Vovchenko Ludmila Leontiivna Zschuravkov Oleksandr V. Lazarenko Оleksandra А. Len Tetyana A. Turkov Oleg V. Yakovenko Olena S. popup.nrat_date 2022-03-09 Close