Факультет електроніки та інформаційних технологій (ЕлІТ)
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Item Fabrication and Research of Superhard (Zr–Ti–Cr–Nb)N Coatings(Polish Academy of Sciences Institute of Physics, 2015) Бондар, Олександр В`ячеславович; Бондарь, Александр Вячеславович; Bondar, Oleksandr Viacheslavovych; Постольний, Богдан Олександрович; Постольный, Богдан Александрович; Postolnyi, Bohdan Oleksandrovych; Кравченко, Юлія Анатоліївна; Кравченко, Юлия Анатольевна; Kravchenko, Yuliia Anatoliivna; Shypylenko, A.P.; Sobol, O.V.; Beresnev, V.M.; Kuzmenko, A.P.; Zukowski, P.This work presents the results of (Zr–Ti–Cr–Nb)N superhard coatings research. The samples were fabricated by the vacuum-arc deposition method (Arc-PVD). Structure, composition and properties of these coatings were studied. The study of coatings was carried out using scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction. Hardness measurements and adhesion tests were performed. The coatings thickness was up to 6.2 m, nanocrystallites sizes ranged from 4 to 7.3 nm. Values of hardness and cohesive strengtItem Structure and Properties of Superhard (Zr-Ti-Cr-Nb)N Coatings(Sumy State University, 2014) Постольний, Богдан Олександрович; Постольный, Богдан Александрович; Postolnyi, Bohdan Oleksandrovych; Бондар, Олександр В`ячеславович; Бондарь, Александр Вячеславович; Bondar, Oleksandr Viacheslavovych; Кравченко, Юлія Анатоліївна; Кравченко, Юлия Анатольевна; Kravchenko, Yuliia Anatoliivna; Shypylenko, A.P.; Sobol, O.V.; Beresnev, V.M.; Wegierek, P.; Smirnova, K.; Kravchenko, Ya.This work presents the results of superhard (Zr-Ti-Cr-Nb)N coatings research. Samples were fabricated by vacuum-arc deposition method (Arc-PVD). Structure, composition and properties of these coatings were studied. The study of coatings was performed using SEM, EDS and XRD. Hardness measurements and adhesion tests were provided. The coatings thickness was up to 6.2 mm. Nanocrystallites sizes ranged from 4 to 7.3 nm. Values of hardness and cohesive strength were H=43.7 GPa and LC=62.06 N respectively. The optimal conditions for coating’s deposition were found.