Наукові роботи. Фізичний факультет
Постійне посилання колекціїhttps://ekhnuir.karazin.ua/handle/123456789/30
Переглянути
3 результатів
Результати пошуку
Документ Size and temperature effects in wetting in island films(1994) Gladkikh, N.T.; Dukarov, S.V.; Gabusu, P.A.This paper is devoted to studies of wetting in metal island films on different substrates in the broad ranges of temperature (from 0.6 to 1.5 of the melting temperature), island size (from 3 nm to 10 mkm) and thickness of films serving as substrates (from 0 to 100 nm).Документ Size Effect upon Solidification of Small Bismuth Particles(1998) Gladkikh, N.T.; Dukarov, S.V.; Kryshal, A.P.; Larin, V.I.Electron microscopy was used to study the dependence of the crystallization temperature on the particle size upon solidification of small bismuth particles produced by vapor deposition on substrates of amorphous carbon. The crystallization temperature for particles 2–100 nm in diameter was found to decrease with decreasing diameter of the particles; and for particles 2–3 nm in diameter, supercooling was equal to zero. The results were analyzed within the classic theory of solidification; it was shown that, for the smallest particles, a size effect consisting in the change of the character of the liquid-crystal phase transition is observed.Документ Size effects in wetting for highly dispersed systems(Gordon and Breach Science Publishers S.A., 1989) Chizhik, S.P.; Gladkikh, N.T.; Larin, V.I.; Grigoryeva, L.K.; Dukarov, S.V.; Stepanova, S.V.Wetting in systems with different dispersities of the solid and liquid phases and with different types of interfacial interaction was investigated. Studied were liq-uid metal-amorphous carbon and liquid metal-solid metal film-ionic crystal sys-tems in which the drop size and the thickness of film-substrates varied in the range 3x10^5–2x10^2 nm, respectively. It was found that for systems of the metal-amorphous carbon type a reduction in particle size and in thickness of carbon films brings about a size effect during wetting as a consequence of a decrease in the surface energy of the corresponding dispersed phase. For metal-metal-ionic crystal systems, a size effect during wetting is also observed but it is mainly caused by a changed nature of the interfacial interaction in the dispersed phases. Some parameters derived from the experimental data determine the dependence of the surface energy of small particles on their size.