Search academic texts

Information × Registration Number 0212U000251, 0111U004964 , R & D reports Title Formation of low-dimensional systems of metals, silicon and carbon during quasi-equilibrium steady-state condensation popup.stage_title Head Kosminska Yuliya Olexandrivna, Кандидат фізико-математичних наук Registration Date 27-01-2012 Organization Sumy State University popup.description2 The fundamental aim of project is research and development new technological direction of forming of the low-dimensional systems of carbon, low-volatile metals, silicon, based on the phenomena of self-organization in the conditions of near-equilibrium stationary processes of condensation on the border of division low temperature plasma-condensate. For achievement of this aim the condensates of chrome and nickel are got in near-equilibrium terms in a high-clean inert environment by condensation weak streams of substance by means of the system of magnetron sputtering on a direct current. The structure of condensates was investigated by transmission and scanning electronic microscopy, basis of which is loosely-coupled nanocrystals or structural fragments with the rounded habituses of micro- and nanometer scale, depending on the technological parameters of experiment. Forming of the system of whiskers was investigated, optimal technological parameters forming of low-dimensional structures of chrome and nickel were certain. The condensates of silicon and carbon was obtain in near-equilibrium conditions in a high-clean inert environment by condensation of diffusive back fluxes of the ion-sputtered substance, that it is realized by accumulative ion-plasma system. Structural properties of the got condensates was investigated by depending of the technological conditions of condensation, determinate optimal conditions for obtain silicon and carbon micro- and nanostructures. Thus for the condensates of silicon self-organization of identical forms and sizes of small islands was educed, it is explained by created mathematical model. For the condensates of carbon was investigated the process of allotropic selectivity of growth, it was the result of self-organization of process of near-equilibrium stationary condensation in the accumulative ion-plasma system. Product Description popup.authors Дьошин Борис Вікторович Дьошин Віктор Борисович Корнющенко Ганна Сергіївна Мокренко Олександр Анатолійович Перекрестов Вячеслав Іванович popup.nrat_date 2020-04-02 Close