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Information × Registration Number 0215U006035, 0111U007956 , R & D reports Title Phase transformations in single-component and binary nanosize film systems popup.stage_title Head Sukhov Volodymyr, Кандидат фізико-математичних наук Registration Date 26-01-2015 Organization Kharkov National University named after V.N. Karazin popup.description2 Object of study: continuous polycrystalline metal films. Objective: To study size effects, physical laws of phase transitions and formation conditions of equilibrium and metastable phases in single and multi-layer metal films. Research Methods: films were produced by physical vacuum deposition and were examined by means of electron microscopy methods. The investigations of phase transformations and diffusion processes in single and multilayer metal films on amorphous carbon substrates have been conducted. It has been shown that the decay of thin solid film into individual islands may occurs at temperature well below the melting point. The activation energy of surface self-diffusion for Pb, Sn and In films has been determined. It has been shown that melting of polycrystalline metal films occurs in a certain temperature range, and this range expands with decreasing in film's grain size. The mean energy of the grain boundaries for Pb and Sn films has been estimated. The values of supercooling upon crystallization for easy-melted component in multilayer Cu-Bi-Cu, Cu-In-Cu and Cu-Pb-Cu films have been measured and it has been shown by means of in situ studies that sharp variation of electrical resistance in these films is undoubtedly related with phase transformation processes. It has been found that small amount of Pb being added to solid copper film decreases the temperature of it decay. A new method for improving the stability of such systems has been proposed. The main results have been obtained for the first time. Their relevance is beyond doubt due to both the need of understanding the physics of processes in low-dimensional systems, and extensive use of such objects in modern technologies. The results of research could be used by scientific institutions involved in similar studies. Product Description popup.authors Дукаров С. Петрушенко С. Самсонік О. Сухов В. Чурілов І. popup.nrat_date 2020-04-02 Close