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Information × Registration Number 0224U033530, (0121U108688) , R & D reports Title Physical and technological bases of ion-plasma treatment of structural materials, creation of new functional coatings and study their fundamental properties for use in nuclear power, engineering and medicine popup.stage_title Дослідження особливостей синтезу та порівняння наноструктурних покриттів на основі з’єднань Ti, Al, Cr, V, Nb, Mo різних систем. Розроблення рекомендацій щодо галузей їх використання та виготовлення на існуючому обладнанні. Проведення порівняльного аналізу внутрішніх напружень і фазового стану алмазоподібних покриттів, осаджуваних з потоків багатоатомних іонів вуглеводнів (CH4+, C2H2+, C6H6+) при різних температурах осадження. Дослідження взаємного дифузійного проникнення азоту і різних компонент покриттів в модифіковані шари. Розробка та дослідження процесів CVD-синтезу алмазних покриттів у плазмі тліючого розряду на твердосплавні ріжучі пластинки Head Bilous Vitalii A., Доктор технічних наук Registration Date 30-12-2024 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description1 Creation of combined methods, including ion-plasma treatment and deposition of protective coatings on the surfaces of steels and zirconium, titanium alloys to improve the functional properties of the structural materials of nuclear energy and mechanical engineering. Investigation of the influence of the parameters of ion-plasma modification processes on the structural features and protective properties of coatings. Achieved by the developing equipment and processes of ion-plasma synthesis of the functional coatings based on nitrides, oxynitrides (carbides) of metals, diamond-like carbon and polycrystalline diamond, which are characterized by record values of physical and mechanical, chemical, tribological properties popup.description2 The report contains an analysis of the features of ion-plasma synthesis, structure and properties of protective hardening coatings of different elemental composition and architecture. Further improvement of the properties of nanocomposite, multilayer and MAX phase based coatings is associated with the combination of doping concepts and the creation of superlattice and nanolayer structures. The results of the study of the influence of the composition of the O2-N2 gas mixture during vacuum arc deposition on the properties of V-O-N coatings are presented. The conditions for the synthesis of carbon coatings from a stream of CH4+, C2H2+ and C6H6+ hydrocarbon ions are studied theoretically based on the model of the nonlocal thermoelastic ion peak and the phase diagram method. Depending on the ionic species and energy, the deposition temperatures that promote the formation of diamond-like sp3 bonds have been determined, which allows the properties of the coatings to be controlled. The influence of nitriding and the use of metal sublayers of Mo, Ti, Cr, prior to the application of Mo2N coating, on the process of complex ion-plasma modification of the surface of 25CrMoV steel is studied. The peculiarities of nitrogen diffusion depending on the composition of the working gas and the thickness of the intermediate layers are discussed. The conditions contributing to the strengthening and improvement of the cavitation resistance of the modified steel are determined. The report considers promising approaches to the use of diamond CVD coatings to improve the performance of cutting tools. It is shown that coatings with a thickness of 30 μm deposited from glow discharge plasma on the surface of polycrystalline synthetic diamond cutting inserts at a temperature of 1110-1150°С provide for improved surface quality during finishing impactless turning of aluminum alloy and for hard-to-machine ceramics based on Al2O3 – a reduction in tool wear by up to 1.75 times. Product Description popup.authors Ilchenko Oleksandr V. Bilous Vitaliy A. Besiedina Yuliia O. Bortnytska Marharyta O. Vasyliev Volodymyr V. Volkov Yurii Ya. Hrihorieva Tamila A. Zadniprovskyi Yurii O. Kalinichenko Oleksandr I. Klymenko Illia O. Koshevyi Kostiantyn I. Kuprin Oleksandr S. Luchaninov Oleksandr A. Moskalets Ivan M. Ovcharenko Valerii D. Petrenko Olena L. Reva Serhii H. Reshetniak Olena M. Strelnytskyi Volodymyr Ye. Tolmachova Halyna M. popup.nrat_date 2024-12-30 Close