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Information × Registration Number 0222U000318, 0119U100787 , R & D reports Title Implantation of low-energy and high-energy ions into multielement and multilayer coatings: microstructure and properties popup.stage_title Head Pogrebnjak Olexandr D., Доктор фізико-математичних наук Registration Date 06-01-2022 Organization Sumy State University popup.description2  The physical bases of the interaction of low, medium and high energy ions with nanostructured and nanocomposite coatings are developed, and the regularities of changes in phase composition, microstructure and physical and mechanical properties of nanostructured and nanocomposite coatings in the process of accumulation of radiation defects and variations in their composition during the implantation with ions of Au-, N+, Xe-, Si, etc are established. Complex studies of multi-element and multilayer coatings based on nitrides and carbonitrides of Cr, Zr, Ti, Al, Hf, Nb, Si, V and Y before and after irradiation with ions of different energies are carried out. General regularities of change of chemical composition, formation of defect structure, including vacancies, clusters and dislocations, changes of structure and physical and mechanical properties of nanostructured multielement and multilayer coatings before and after irradiation with ions of different energies are obtained. Experimental and numerical studies have made it possible to describe in detail the defective state depending on the energy of the implanted ions, i.e. high energy up to 200 MeV (ion implantation dose from 5·10^11 to 5·10^13 ion/cm^2), low energy from 60 to 450-500 KeV (ion implantation dose from 5·10^11 to 5·10^13 ion/cm^2). The main experimental methods are scanning and transmission electron microscopy, secondary ion mass spectrometry, X-ray diffraction, X-ray photoelectron spectrometry, Rutherford backscattering spectrometry, positron annihilation, indentation, scratch testing and the complex of numerical modelling. The work belongs to the fundamental complex research and is relevant for several related fields of physics and materials science Product Description popup.authors Bondar Oleksandr V. Honcharov Oleksandr A. Kravchenko Yaroslav O Krivets Olexander S. Lisovenko Margaryta O. Maksakova Olha V. Pohrebniak Oleksandr D. Rogoz Vladyslav M Smyrnova Katerina V. popup.nrat_date 2022-03-09 Close