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Information × Registration Number 0223U003221, 0120U101969 , R & D reports Title Physicochemical fundamentals of technology of microwave radiotransparent ceramics and protective glass-ceramic-metal coatings for aviation, rocket and space technology. popup.stage_title Head Zaichuk Oleksandr V., д.т.н. Registration Date 05-04-2023 Organization Ukrainian State University of Chemical Technology popup.description2 The object of research is physico-chemical and technological processes of obtaining radio-transparent ceramic materials, glasses and glass-metal-ceramic coatings with a given complex of physical and technical properties. The purpose of the work is to develop compositions and a method of obtaining densely sintered non-alkali radio-transparent ceramics, non-alkali glasses and glass-metal-ceramic coatings for the protection of chromium-nickel alloys. Research methods – calculation and basic physico-chemical methods of analysis. Peculiarities of the microstructure and phase composition were investigated and the obtained compositions of densely sintered radio-transparent ceramics of celsian composition for the production of fairings for aircraft antennas and elements of phased antenna arrays, for which a new technical solution was proposed and 1 application for obtaining a security document of Ukraine for an object of intellectual property rights was submitted (on invention). Practical recommendations on the basics of the technology of manufacturing ultra-high-frequency ceramics of cordierite composition and technological instructions for the manufacture of microwave ceramics of cordierite composition were developed, experimental samples of microwave radio-transparent ceramics of cordierite and celsian composition were prepared. The dependences of the influence of the chemical composition and conditions of glass formation on the physicochemical properties of alkali-free glasses of the MgO(SrO)–Al2O3(Y2O3, La2O3)–B2O3–SiO2 system have been established. Practical recommendations for the basics of the technology of manufacturing protective glass-metal-ceramic coatings are provided, and experimental samples for high-temperature protection of chrome-nickel alloys of rocket engines are made.Fields of application: C 23.44 Production of other technical ceramic products; C 25.61 Treatment of metals and coating of metals; C 26.51 Manufacture of instruments and equipment for meas Product Description popup.authors Ivchenko Evgenia M. Amelina Oleksandra A. Baskevych Oleksandr S. Hordieiev Yurii S. Guska Yulia O. Zaichuk Oleksandr V. Kalishenko Yulia R. Saltykov Dmytro Y. Sukha Iryna V. Filonenko Daniil V. Khomenko Olena S. popup.nrat_date 2023-04-05 Close