Центральная Научная Библиотека УрО РАН

Вид документа : Статья из журнала
Шифр издания : 53/S 94
Автор(ы) : Baidakov V. G., Kaverin A. M., Khotienkova M. N., Andbaeva V. N.
Заглавие : Surface tension of an ethane–nitrogen solution. 1: Experiment and thermodynamic analysis of the results
Место публикации : Fluid Phase Equilibria. - 2012. - Vol.328. - С. 13-20
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): surface tension--capillary constant--ethane–nitrogen solution
Аннотация: The differential variation of the method of capillary rise has been employed to measure the capillary constant and calculate the surface tension of ethane–nitrogen solutions. Experiments have been conducted in the temperature range from 93.15 K to 283.15 K at pressures up to 4 MPa. The (p, T)-projection of the line of three-phase liquid–liquid–vapor equilibrium and the surface tension at a liquid–vapor interface close to this line have been determined. Equations are developed which describe the dependence of the capillary constant and the surface tension on the temperature, pressure, and composition of the liquid phase. Experimental data on the surface tension are analyzed in the framework of thermodynamic m
\\\\Expert2\\nbo\\Fluid Phase Equilibria\\2012, v.328, p. 13-20.pdf
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Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Kaverin A. M., Pankov A. S.
Заглавие : Nucleation in Liquid Ethane with Small Additions of Metha
Место публикации : Journal of Physical Chemistry C. - 2012. - Vol.116, №38. - С. 20458-20464
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): liquid--spontaneous boiling-up--ethane–methane solutions
Аннотация: The method of measuring the lifetime of a liquid in a metastable (superheated) state has been used to investigate the kinetics of spontaneous boiling-up of ethane–methane solutions. The temperature dependence of the solution mean lifetime has been traced at two values of methane concentration (2.1 and 6.0 mol %) and two pressures (1.0 and 1.6 MPa). The results of experiments are compared with classical homogeneous nucleation theory. For pure ethane at small (8.9 s) lifetimes, one can observe a systematic “under-heating” (0.5–0.7 K) of the solution against theoretical values of the limiting superheating temperature. Dissolution of 6 mol % of methane in ethane results in a solution “superheating” of 0.7 K in excess of the theoretical value. The slopes of experimental curves at small (8.9 s) lifetimes are in satisfactory agreement with theory. When the mean lifetimes exceed the value of 8.9 s, one can observe considerable deviations of experimental curves from theoretical lines. The discrepancies are discussed in the context of models of heterogeneous and initiated nuc
\\\\Expert2\\nbo\\Journal of Physical Chemistry C\\2012, v. 116, p.20458.pdf
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Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G.
Заглавие : Transport coefficients and the spinodal of a fluid
Место публикации : Physical Review E: Statistical, Nonlinear, and Soft Matter Physics. - 2012. - Vol.86, №2. - С. 021201
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): computer simulation--transport coefficients --lennard-jones
Аннотация: Based on the results of computer simulation of transport coefficients in a Lennard-Jones fluid, it has been shown that in (p,T) coordinates, lines of constant values of coefficients of self-diffusion D and excess shear viscosity Δη extended into the region of superheated liquid and supersaturated vapor have an envelope. Each of the ensembles of such lines is divided into two parts by a critical isoline, where the conditions ϕ=ϕc=const (ϕ=D,Δη) are fulfilled. One part of this ensemble has as an envelope the branch of the spinodal that refers to superheated liquid; the other part has the branch of the spinodal of supersaturated vapor. The critical point of liquid-vapor equilibrium is the cusp of the spinodal, at which the critical isolines have a common tangent line with the spinodal and the binodal. Thus, at the approach to the spinodal, the relations (∂D/∂p)T→∞ and (∂Δη/∂p)T→∞ hold
\\\\Expert2\\nbo\\Physical Review E\\2012, v. 86, p.021201.pdf
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Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G.
Заглавие : Temperature dependence of the surface free energy of a crystal-liquid interface
Место публикации : Russian Journal of Physical Chemistry A. - 2012. - Vol.86, №1. - С. 1763-1765
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): nucleation theory--melting line--crystal-liquid interface
Аннотация: A dimensionless complex containing the surface free energy of a crystal-liquid interface γ, and the entropy jump, temperature, and density of a crystal phase is described using the phenomenology of thermodynamic similarity; this complex remains constant at the melting line. It is demonstrated that the complex refines the result obtained by Skripov and Faizullin in [6] and enables us to estimate the temperature dependence of γ. Our calculations show that the surface free energy of the crystal-liquid interface of normally melting compounds is a monotonically increasing function of temperature
\\\\Expert2\\nbo\\Russian Journal of Physical Chemistry A, Focus on Chemistry\\2012, V.86, N 1, p.1763.pdf
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Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Protsenko S.P., Kozlova Z. R.
Заглавие : Metastable Lennard-Jones fluids. I. Shear viscosity
Место публикации : Journal of Chemical Physics. - 2012. - Vol.137, №16. - С. 164507
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): liquids--glass--crystals
Аннотация: Molecular dynamics methods have been employed to calculate the coefficient of shear viscosity ηs* of a Lennard-Jones fluid. Calculations have been performed in the range of reduced temperatures 0.4 ⩽ kBT/ɛ ⩽ 2.0 and densities 0.01 ≤ ρσ3 ≤ 1.2. Values of ηs* have been obtained for 217 states, 99 of which refer to metastable liquid and gas regions. The results of calculating ηs* for thermodynamically stable states are in satisfactory agreement with the data of earlier investigations. An equation has been obtained which describes the temperature and density dependence of the coefficient of shear viscosity in stable and metastable regions of the phase diagram up to the boundaries of spontaneous nucleation. The behavior of the coefficient of shear viscosity close to the spinodal of a superheated liquid and supersaturated vapor is discussed and the applicability of the Stokes-Einstein relation at high supercoolings of the liquid phase is examined.
\\\\Expert2\\nbo\\Journal of Chemical Physics\\2012, V.137, p.164507.pdf
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Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Tipeev A. O.
Заглавие : Crystal nucleation and the solid–liquid interfacial free energy
Место публикации : Journal of Chemical Physics. - 2012. - Vol.136, №7. - С. 074510
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): lennard-jones fluid--crystal nucleation--metastable systems
Аннотация: We present the results of molecular dynamics simulation of crystal nucleation in a supercooled Lennard–Jones liquid. Temperature and baric dependences of the nucleation rate, the Zeldovich factor, nucleus size diffusion coefficient, the radius, and the pressure in a critical crystal nucleus are defined in computer simulation. The data obtained have been used in the framework of classical nucleation theory to calculate the effective surface energy of crystal nuclei γe. It is shown that the value of γe at T = const exceeds the value of the interfacial free energy at a flat crystal–liquid interface γ∞ and γe γ∞ at p
\\\\Expert2\\nbo\\Journal of Chemical Physics\\2012, V.136, p.074510.pdf
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Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Protsenko S.P., Kozlova Z. R.
Заглавие : The self-diffusion coefficient in stable and metastable states of the Lennard-Jones fluid
Место публикации : Fluid Phase Equilibria. - 2011. - Vol. 305, № 2. - С. 106-113
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): lennard-jones fluid--vapor--superheated liquids
Аннотация: Molecular-dynamics simulations have been employed to calculate the self-diffusion coefficient of a Lennard-Jones fluid for 198 sets of state parameters in the range of temperatures 0.35
\\\\Expert2\\nbo\\Fluid Phase Equilibria\\2011, v.305, p. 106-113.pdf
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Вид документа : Статья из журнала
Шифр издания : 53/C 20
Автор(ы) : Baidakov V. G., Khotienkova M. N., Andbaeva V. N., Kaverin A. M.
Заглавие : Capillary constant and surface tension of methane-nitrogen solutions: 1. Experiment
Место публикации : Fluid Phase Equilibria. - 2011. - Vol.301, №1. - С. 67-72
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): mixtures --oxygen
Аннотация: The differential version of the method of capillary rise has been used to measure the capillary constant and calculate the surface tension of methane-nitrogen solutions. Experiments. have been conducted in the temperature range from 95 to 170K at pressures up to 4 MPa. Experimental data on surface tension have been compared with the results of calculations by thermodynamic models. Equations are given which describe the dependence of the capillary constant of a solution on its temperature and composition.
\\\\Expert2\\nbo\\Fluid Phase Equilibria\\2011, v.301, p. 67-72.pdf
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Вид документа : Статья из журнала
Шифр издания : 53/C 20
Автор(ы) : Baidakov V. G., Kaverin A. M., Andbaeva V. N., Khotienkova M. N.
Заглавие : Capillary Constant of a Xenon–Helium Solution
Место публикации : Journal of Chemical & Engineering Data. - 2011. - Vol.56, №11. - С. 4123-4125
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): capillary method --xenon–helium solution
Аннотация: The differential capillary method has been used to measure the capillary constant of a xenon–helium solution. Experiments have been conducted in the temperature range from (165 to 267) K at pressures up to 4 MPa. An equation approximating the baric dependence of the capillary constant has been suggested
\\\\Expert2\\nbo\\Journal of Chemical and Engineering Data\\2011, v.56, p. 4123-4125.pdf
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Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Bobrov K. S., Teterin A.S.
Заглавие : Cavitation and crystallization in a metastable Lennard-Jones liquid at negative pressures and low temperatures
Место публикации : Journal of Chemical Physics. - 2011. - Vol.135, №5. - С. 054512
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): solid-liquids --liquids--lennard-jones
Аннотация: Molecular dynamics simulations have been used to investigate the kinetics of spontaneous cavitation and crystallization in a Lennard-Jones liquid at negative pressures in the temperature range where these processes compete with each other. The nucleation rate has been calculated in NVE and NpT ensembles by the method of mean lifetime and the transition interface sampling method with parallel path swapping. The data obtained have been used to determine in the framework of classical nucleation theory the value of the ratio of the solid–liquid and the liquid–void interfacial free energy for critical crystals and cavities and the values of their volumes at points where the cavitation rate of the liquid is equal to the rate of its crystallization
\\\\Expert2\\nbo\\Journal of Chemical Physics\\2011, v.135, p.054512.pdf
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Сиглы отделов ЦНБ УрО РАН

  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

Сиглы библиотек институтов и НЦ УрО РАН

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