Перегляд за Автор "Larin, V.I."
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Документ Methods of determination of wetting in highly dispersed systems(Gordon and Breach Science Publishers S.A., 1987) Gladkikh, N.T.; Chizhik, S.P.; Larin, V.I.; Grigoryeva, L.K.; Dukarov, S.V.Procedures are described for studying the wetting of solid substrates by island vacuum condensates. The proposed methods are based on the application of optical and electron microscopy and may be used to find the angles of contact over a wide range of particle sizes (3-10^5 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.Документ Temperature dependence of surface energy of solids(STC “Institute for Single Crystals”, 1994) Gladkikh, N.T.; Dukarov, S.V.; Larin, V.I.The surface energy of a number of solid metals (In, Sn, Bi, Pb and Au) is determined in the temperature range (0.6-1)Ts from the size dependence of melting temperature for small particles of these metals. A nonlinear decreasing of surface energy is established in the region of premelting temperatures that is attributed to the increase of the vacancy concentration. The obtained data are compared with available ones for massive samples. . . . . . . . . . . . . . . . . . Определена поверхностная энергия металлов In, Sn, Bi, Pb и Au в твердой фазе в интервале температур (0.6-1)Ts по данным зависимости температуры плавления малых частиц этих металлов от их размера. Установлено нелинейное уменьшение поверхностной энергии я области яредллавильных температур, которое объясняется увеличением концентрации вакансий. Проведено сравнение полученных результатов с имеющимися данными для массивных образцов. . . . . . . . . . . . . . . . . . . . Визначено поверхневу енергію металів In, Sn, Bi, Pb та Au в твердій фазі в інтервалі температур (0.6-1)Ts за даними залежності температури плавлення малих частинок цих металів від їх розміру. Встановлено нелінійне зменшення поверхневої енергії в області передплавильних температур, яке пояснюється збільшенням концентрації вакансій. Проведено порівняння одержаних результатів з наявними даними для масивних зразків.