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Information × Registration Number 0215U007281, 0112U004471 , R & D reports Title Engineering of oxide nanoparticles surface with the use of extreme conditions for forming of structure and properties of ceramic and composite functional materials. popup.stage_title Head Konstantinova Tatyana Yevgenivna, Registration Date 20-02-2015 Organization Donetsk Institute of Physics @ Engineering named after O.O.Galkin NAS of Ukraine popup.description2 Objects of study - nanosized powders of zirconia modified with chromium and aluminum; amorphous zirconium xerogel; composite ceramic-based nano-sized powders of zirconia; structure and surface modified zirconia nanoparticles; structure and morphology of ceramics based on nano-modified zirconia; evolution of the ceramics structure made from modified nanopowders upon it’s consolidation.Research methods - X-ray diffraction, transmission and scanning microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, nuclear magnetic resonance spectroscopy, electron paramagnetic resonance spectroscopy, thermogravimetric analysis, differential scanning calorimetry, dilatometric studies, measurement of electrochemical characteristics of nanopowder systems: zeta potential, spectroscopy electrochemical impedance.The effect of doping with different oxides on the surface state were investigated along with the structure and process of formation of nanoparticles of zirconia stabilized with yttria, the effect of high hydrostatic pressure and pulsed magnetic field on the properties of the nano-zirconia based xerogel including nanoparticles and nanocomposites and their properties and mechanisms of formation of structure in different environments and under the influence of various physical and chemical effects. According to the results of these studies methods of physical and chemical modification of zirconia nanoparticles are suggested aimed at obtaining the nanopowders with desired properties, especially the state of their surface. Also, as a result of research a new method for creating nano-composite ceramic materials is proposed which is essentially different from the traditional method of mechanical mixing of the components of the composite.The method is based on the synthesis of nanoparticles of the matrix component which surface is doped by certain chemical elements. metamaterials based composites in gigahertz frequency range were also investigated. Product Description popup.authors Ахкозов Л.А. Брюханова І.І. Бурховецький В.В. Волкова Г.К. Глазунова В.О. Головань Г.Н. Горбань О.O. Даніленко І.А. Дорошкевич О.С. Криворучко В.М. Лоладзе Л.В. Марченко М.А. Носолєв І.К. Перекрестова Л.Д. Плещицер Ю.О. Саприквна А.В. Синякіна С.А. Тарапов С.І. Таренков В.Ю. Ткаченко О.М. Шило А.В. Ящішин І.О. popup.nrat_date 2020-04-02 Close