Факультет електроніки та інформаційних технологій (ЕлІТ)
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Item Formation of multilayered Ti-Hf-Si-N/NbN/Al2O3 coatings with high physical and mechanical properties(Polish Academy of Sciences Institute of Physics, 2013) Погребняк, Олександр Дмитрович; Погребняк, Александр Дмитриевич; Pohrebniak, Oleksandr Dmytrovych; Prozorova, M.S.; Kovalyova, M.G.; Kolisnichenko, O.V.; Береснев, В.М.; Beresnev, V.M.; Oyoshi, K.; Takeda, Y.; Каверіна, Аліса Шер Ахмад; Каверина, Алиса Шер Ахмад; Kaverina, Alisa Sher Akhmad; Шипиленко, Андрій Павлович; Шипиленко, Андрей Павлович; Shypylenko, Andrii PavlovychThis work presents the first results on forming of multi-layered superhard coatings Ti-Hf-Si-N/NbN/Al2O3 and their properties as well as structure. Microstructure, elemental and phase compositions of multi-layered coatings obtained by different methods were investigated. There were used such methods as: scanning electron microscopy EDS JEM-7000F microscope (with microanalysis) for research of cross-section of coatings, with subsequent Auger-electron spectroscopy, X-ray diffraction analysis, optical inverted microscope Olympus GX51, electron-ion microscopes Quanta 200 3D and Quanta 600 (scanning electron microscopy), equipped by the detector of X-ray radiation of the system PEGASUS 2000. It was stated that hardness of coatings has reached 56 GPa, and at the same time the factor of wearing during friction was the smallest 2.571x10(-5). It was also noted that nitrogen pressure in the chamber at the deposition of the top layer significantly influences on the properties of samples. For example, the coe cient of friction at P = 0:3 Pa from 0.2 at the beginning of track to 0.001 (during the tests), and at the pressure of nitrogen P = 0:8 Pa, the coefficient of friction was equal to 0.314 at the beginning of track and 0.384 at the end (during the tests). When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33936Item Effect of Cu negative ion implantation on physical properties of Zn1-xMnxTe films(Acta physica polonica A, 2013) Погребняк, Олександр Дмитрович; Погребняк, Александр Дмитриевич; Pohrebniak, Oleksandr Dmytrovych; Опанасюк, Анатолій Сергійович; Опанасюк, Анатолий Сергеевич; Opanasiuk, Anatolii Serhiiovych; Курбатов, Денис Ігорович; Курбатов, Денис Игоревич; Kurbatov, Denys Ihorovych; Kolotova, I.A.; Amekura, H.; Климов, Олексій Володимирович; Климов, Алексей Владимирович; Klymov, Oleksii Volodymyrovych; Takeda, Y.; Kozak, C.; Шипиленко, Андрій Павлович; Шипиленко, Андрей Павлович; Shypylenko, Andrii PavlovychThe paper deals with the investigations of structural properties of Zn1-xMnxTe lms, which were fabricated under various deposition conditions using the thermal evaporation method in a closed volume. The surface mor- phology of the samples was studied, the phase analysis of their structures was performed, the elemental analysis of the lms and the crystal lattice constant were investigated. The texture perfection of the lms before and after copper ion implantation was evaluated. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33849