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Information × Registration Number 0218U002189, 0115U002388 , R & D reports Title Nanosize, amorphous, ceramic, quasicrystalline and composite materials based on metals and semiconductors with high properties popup.stage_title Head Bashev Valery Fedorovich, Registration Date 30-01-2018 Organization Oles Honchar Dnipro National University popup.description2 Research objects - physical patterns of amorphous, nanocomposite and microcrystalline, quasicrystalline, composite metal and ceramic materials formation by fast and fastest quenching methods; electronic phenomena in heterogeneous and disordered structures on the basis of semiconductors, including nanosized, ceramic, quantum-size and composite based on oxides and metal chalcogenides. The purpose of the study is to create new inhomogeneous materials for functional electronics with adjustable properties and to ensure their increased operational stability; obtain experimental samples with improved optical and electrical properties, which will enable the creation of new devices for micro and optoelectronics; to develop modes and to investigate the influence of kinetic-thermodynamic conditions of quenching from liquid and vapor, the degree of supercoiling of melts and the chemical composition on the formation of micro-morphology of structure and new quasicrystalline, metastable amorphous and microcrystalline phases with optimal physical and mechanical properties. Research methods and equipment - differential thermal analysis, quantitative metallographic, X-ray diffraction, electron microscopy, magnetic measurements and construction of temperature dependences of electrical resistance. Theoretical and practical results - the properties of experimental samples of amorphous, nanocrystalline and quasicrystalline systems were studied, which were obtained by the following methods: 1) fusion of components of quasicrystalline alloys in a Tamman furnace; 2) splat-cooling (induced by an induction droplet of the investigated metal quickly directed to a high-temperature substrate, where further its ultra-fast crystallization occurs); 3) Ulitovskii-Taylor (the essence of it consists in mechanical pulling of softened pyrex glass fiber with liquid metal in the interior with their rapid and simultaneous forced cooling by running water); 4) trielectrode ion-plasma spraying of clustered targets from pure elements. Novelty - the equipment was developed that allows, for the first time in conditions of earthly gravity, to obtain in a system of non-miscible liquids and pure metals a new promising class of metastable film materials, including amorphous; implemented in higher educational institutions. The branches of use are radio, microelectronics, consumers of results - enterprises, scientific institutions, and of higher education. Product Description popup.authors Антропов Сергій Миколайович Буланий Михайло Филимонович Зінковський Геннадій Валентинович Здоровець Наталія Олександрівна Коваленко Олександр Володимирович. Колбунов Вадим Радиславович Куцева Наталя Олександрівна Кушнерьов Олександр Ігорович Ляшков Олександр Юрійович Овруцький Анатолій Матвійович Прохода Олександр Сергійович Рябцев Сергій Іванович Скорбященский Євген Сергійович Скуратовський Ігор Анатолійович Сухова Олена Вікторівна Федоренкова Любов Іванівна Хмеленко Олег Валерійович popup.nrat_date 2020-04-02 Close