Вид документа : Статья из журнала Шифр издания : 53/B 16 Автор(ы) : Baidakov V. G. Заглавие : The attainable superheating of nitrogen-helium solutions Место публикации : Russian Journal of Physical Chemistry A. - 2009. - Vol.83, №10. - С. 1751-1756 ББК : 53 Предметные рубрики: ФИЗИКА Ключевые слова (''Своб.индексиров.''): homogeneous nucleation--oxygen--krypton Аннотация: The nucleation of the vapor phase in superheated nitrogen-helium liquid solutions was studied by lifetime measurements. The temperature dependences of the mean lifetime of metastable solutions were obtained at p = 0.5 and 1.0 MPa and several concentrations. The nucleation rate J was found to vary from 10(4) to 10(8) s(-1) m(-3). The adsorption of the high-volatility component on the metastable liquid-critical bubble boundary was shown to play a determining role in decreasing the temperature of the attainable solution super-heating as the solution concentration increased. The experimental data were compared with homogeneous nucleation theory. Systematic discrepancies were obtained; these discrepancies were related to the influence of the size effect on the surface tension of a nucleus and the work of its formation Доп.точки доступа: Байдаков Владимир Георгиевич