Search academic texts

Information × Registration Number 0311U003511, 0111U006369 , R & D reports Title Optical and X-Ray investigations of phase composition of coverages are from an diamond-like and nanocomposite structure popup.stage_title Дослідження фазового складу структури і напруженого стану магнетронних покриттів і покриттів, які нанесені гібридним напиленням. Head Strelchuk Viktor Vasylyovych, Доктор фізико-математичних наук Registration Date 07-07-2011 Organization Institute of Semiconductor Physics of National Academy of Sciences of Ukrain popup.description2 Nanocomposite TiN:С coatings obtained by magnetron sputtering, diamond-like carbon coatings deposited by hybrid laser-plasma method and samples of hydroxylapatites were investigated using micro-Raman spectroscopy and high-resolution X-ray diffraction. Raman spectra are obtained with submicron spatial resolution and phase composition of investigated structures is estimated. Composition and characteristic sizes of microcrystal grains were determined, and elastic strains were estimated for the investigated coatings. From analysis of Raman spectra shape for the investigated TiN:С films, formation of highly-disordered graphite-like clusters was found. From the ratio of G and D bands the relation of sp2/sp3 carbon phases was estimated. The results of Raman studies of investigated diamond-like carbon films deposited on metallic substrates depending on the substrate type evidences the formation of iron, molybdenum and copper oxide layers, and amorphous and crystalline carbon clusters in the investigated structures were not found. Existence of both disordered graphite-like phase and crystalline diamond phase for diamond-like films deposited by hybrid laser-plasma method on silicon substrates was found. From analysis of X-ray diffraction pattern of the investigated ТіС films, presence of cubic phase of titanium carbide is found. From quantitative analysis of cubic TiC phase it was shown that sizes of coherent scattering volume and of lattice microinhomogeneities have isotropic behavior, when average lattice strains linearly increase with grain sizes. Product Description popup.authors Авраменко Катерина Андріївна Кладько Василь Петрович Коломис Олександр Федорович Кучук Адріан Володимирович Ніколенко Андрій Сергійович popup.nrat_date 2020-04-02 Close