П 46 Пожарская, Г. И. Диффузия броуновских частиц в критической области расслаивания раствора альфа, альфа/штрих-лутидин-вода [] = Diffusion of Brownian Particles in the Critical Region of a,a'-Lutidine-Water Solution Separation / Г. И. Пожарская, С. П. Самохин, В. П. Скрипов // Журнал физической химии. - 1996. - Т. 70, N4. - С. 652-654 Рубрики: ФИЗИКА Кл.слова (ненормированные): ДИФФУЗИЯ РАСТВОРА -- ЧАСТИЦЫ БРОУНОВСКИЕ -- БРОУНОВСКИЕ ЧАСТИЦЫ -- расслаивание растворов -- РАСТВОР АЛЬФА, АЛЬФА/ШТРИХ-ЛУТИДИН-ВОДА -- АЛЬФА, АЛЬФА/ШТРИХ-ЛУТИДИН-ВОДА -- АЛЬФА, АЛЬФА/ШТРИХ-ЛУТИДИН-ВОДА-ЛАТЕКС -- АЛЬФА, АЛЬФА/ШТРИХ -- ЛУТИДИН -- ВОДА -- ЛАТЕКС -- СПЕКТРОСКОПИЯ КОРРЕЛЯЦИОННАЯ -- КОРРЕЛЯЦИОННАЯ СПЕКТРОСКОПИЯ -- ОБЛАСТЬ ГОМОГЕННАЯ -- ГОМОГЕННАЯ ОБЛАСТЬ -- ТОЧКА КРИТИЧЕСКАЯ -- КРИТИЧЕСКАЯ ТОЧКА Аннотация: Методом корреляционной спектроскопии исследована серия растворов альфа, альфа/штрих-лутидин-вода-латекс в гомогенной области существования раствора альфа, альфа/штрих-лутидин-вода в окрестности критической точки расслаивания 10 в -4.5 степени < эпсилон = [T-Tc]Tc < 10 в -2.5 степени. Определены коэффициенты диффузии раствора и броуновских частиц |
C 74 Computer simulation of nucleation in a gas-saturated liquid [Electronic resource] / S. P. Protsenko, V. G. Baidakov, A. S. Teterin, E. R. Zhdanov // Journal of Chemical Physics. - 2007. - Vol. 126, № 9. - P094502/1-094502/14 Рубрики: ФИЗИКА Кл.слова (ненормированные): LIQUID Аннотация: Molecular dynamics methods have been used to investigate the kinetics of the liquid-gas phase transition in a two-component Lennard-Jones system at negative pressures and elastic stretches of the liquid to values close to spinodal ones. The molecular dynamics system consists of 2048 interacting particles with parameters of the Lennard-Jones potential for argon and neon. Density dependences of pressure and internal energy have been calculated for stable and metastable states of the mixture at a temperature T*?0.7±0.01 and three values of the concentration. The location of mechanical and the diffusion spinodals has been determined. It has been established that a gas-saturated mixture retains its stability against finite variations of state variables up to stretches close to the values near the diffusion spinodal. The statistic laws of the process of destruction of the metastable state have been investigated. The lifetimes of the metastable phase have been determined. It is shown that owing to the small height of the potential barrier that separates the microheterogeneous from the homogeneous state a system of finite size has a possibility to make the reverse transition from the microheterogeneous into the homogeneous state. The lifetimes of the system in the microheterogeneous state, as well as the expectation times of the occurrence of a critical nucleus, are described by Poissonian distributions. \\\\Expert2\\NBO\\Journal of Chemical Physics\\2007, v.126, p.094502, S.P.Protsenko.pdf |
M 79 Molecular dynamics simulation of the physicochemical properties of silicon nanoparticles containing 73 atoms [Текст] / A. E. Galashev, V. A. Polukhin, I. A. Izmodenov, O. R. Rakhmanova // Glass Physics and Chemistry. - 2007. - Vol. 33, № 1. - С. 86-95 Рубрики: ФИЗИКА Кл.слова (ненормированные): MOLECULAR DYNAMICS Аннотация: The physicochemical properties of 73-atom silicon nanoparticles that have a crystal structure, a random atomic packing, and a packing formed by inserting a 13-atom icosahedron into a 60-atom fullerene are investigated using the molecular dynamics method. Analysis of the behavior of the internal energy, the radial distribution function, the distribution of bond angles, and the specific heat at a constant pressure C p in the temperature range 10–1710 K indicates that a crystalline nanoparticle undergoes melting at a temperature of 710 K and that the structural transformations occurring in particles with an irregular atomic packing exhibit specific features. It is demonstrated that the temperature dependence of the self-diffusion coefficient follows a linear behavior. Local deviations from the linear behavior are most pronounced for the crystalline nanoparticle. \\\\Expert2\\NBO\\Glass Physics and Chemistry\\2007, v. 33, N 1, p.85.pdf |
S 61 Simulation of noncrystalline silicon nanoparticles: a computer experiment [Текст] / A. E. Galashev, V. A. Polukhin, I. A. Izmodenov, O. R. Rakhmanova // Glass Physics and Chemistry. - 2006. - Vol. 32, № 1. - С. 99-105 Рубрики: ФИЗИКА Кл.слова (ненормированные): SILICON Аннотация: The physical properties of vitreous and amorphous silicon nanoparticles containing 300, 400, and 500 atoms are investigated by the molecular dynamics method. For a limited number of degrees of freedom, the internal energy of the amorphous phase is often less than the internal energy of the vitreous phase. The structure of the central region of silicon nanoparticles is studied in detail by constructing Voronoi polyhedra, which make it possible to determine the mean length of bonds and their number. The differences between the structures of nanoparticles in the amorphous and vitreous states are determined by the differences in the distribution of angles between Si-Si bonds and the distribution of bond lengths. Local arrangements of atoms in vitreous silicon nanoparticles are characterized by larger variations in the interatomic distances. The self-diffusion coefficients determined from mean-square atomic displacements are smaller for amorphous nanoparticles due to dominant diffusion over dangling Si-Si bonds. \\\\Expert2\\NBO\\Glass Physics and Chemistry\\2006, v. 32, N. 1, p.99.pdf |
G 15 Galashev, A. E. Computer Simulation of the Stability of Water Clusters Containing Nitrogen Oxide Molecules [Текст] / A. E. Galashev, V. N. Chukanov // Colloid Journal (Translation of Kolloidnyi Zhurnal). - 2004. - Vol. 66, № 5. - С. 523-530 Рубрики: ФИЗИКА Кл.слова (ненормированные): WATER CLUSTERS Аннотация: The stability of water clusters containing nitrogen oxide molecules is studied by the molecular dynamics method. The composition and size of thermodynamically stable heteroclusters are determined. The inclusion of two molecules of nitrogen oxide into aggregates containing seven or more water molecule increases the cluster stability. The correlation between the stability of heteroclusters and the ratio of self-diffusion coefficients of molecules of different kinds is observed. The real part of the cluster permittivity is maximal in the vicinity of the frequency of 200 cm–1. The inclusion of nitrogen oxide molecules into water clusters increases the characteristic frequency of dielectric relaxation. In general, heteroclusters are more stable with respect to perturbations caused by an external electric field than pure clusters with the same number of water molecules. The clusterization of water vapors accompanied by absorption of polar molecules of impurity favors a decrease in the greenhouse effect. \\\\Expert2\\NBO\\Colloid Journal\\2004, V.66, N5,523.pdf |
O-39 Okonishnokov, G. B. Solubility and Diffusion of Carbon Dioxide in Poly(methyl Methacrylate) [] / G. B. Okonishnokov, V. P. Skripov // Polymer Science. Series B. - 1973. - V.15, N12. - С. 890-893 Рубрики: ФИЗИКА Кл.слова (ненормированные): SOLUBILITY OF CARBON DIOXIDE -- DIFFUSION OF CARBON DIOXIDE -- CARBON DIOXIDE -- POLY (METHYL METHACRYLATE) |
B 16 Baidakov, V. G. The self-diffusion coefficient in stable and metastable states of the Lennard-Jones fluid [Electronic resource] / V. G. Baidakov, S. P. Protsenko, Z. R. Kozlova // Fluid Phase Equilibria. - 2011. - Vol. 305, № 2. - P106-113 Рубрики: ФИЗИКА Кл.слова (ненормированные): 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 <= k(B)T/epsilon <= 2.0 and densities 0.005 <= rho sigma(3) <= 1.2. Calculations have been made in stable and metastable states to the boundary of spontaneous nucleation in a model containing 2048 interacting particles. Results of computations, performed in the parameter range of stable states, are compared with the results of previous papers. Equations have been formulated, which describe the dependences of the self-diffusion coefficient on temperature and density and on temperature and pressure in the whole range of parameters including both the stable and metastable (supersaturated vapor, superheated and supercooled liquid) states of fluid \\\\Expert2\\nbo\\Fluid Phase Equilibria\\2011, v.305, p. 106-113.pdf |
B 16 Baidakov, V. G. The self-diffusion coefficient in metastable states of a Lennard-Jones fluid / V. G. Baidakov, Z. R. Kozlova // Chemical Physics Letters. - 2010. - Vol.500, №1-3. - С. 23-27 Рубрики: ФИЗИКА Кл.слова (ненормированные): MOLECULAR-DYNAMICS SIMULATION -- CRITICAL POINTS -- VISCOSITY Аннотация: Molecular-dynamics computer simulation has been used to calculate the self-diffusion coefficient of a Lennard-Jones fluid in the interval of reduced temperatures T* = 0.35-2.0, through mean-squared particles displacements and the velocity autocorrelation function. Calculations have been performed for systems in stable and metastable states up to the boundary of spontaneous nucleation in a model of a fluid consisting of 2048 particles. The values of the self-diffusion coefficient on the spinodals of a superheated liquid and supersaturated vapor have been determined. It has been established that in the region of supercooled states of the liquid phase on an isotherm the logarithm of the self-diffusion coefficient is a linear function of the pressure |
B 16 Baidakov, V. G. Experimental investigations of nucleation in helium-oxygen mixtures / V. G. Baidakov, A. M. Kaverin, G. Sh. Boltachev // Journal of Physical Chemistry B. - 2002. - Vol.106, №1. - С. 167-175 Рубрики: ФИЗИКА Кл.слова (ненормированные): SUPERSATURATED SOLUTIONS -- HOMOGENEOUS NUCLEATION -- SURFACE TENSION Аннотация: The paper presents the results of experimental investigations of nucleation in helium-oxygen gas-filled mixtures. Temperature dependences of the mean lifetime of a mixture in the metastable (superheated) state have been determined, and nucleation rates have been calculated by experiments at fixed pressures of 1.171 and 1.667 MPa and at several values of concentrations. Experimental data are compared with results of the homogeneous nucleation theory in a macroscopic (capillary) approximation and with allowance for the dependence of the properties of nuclei on the curvature of their dividing surface. The size effect of nucleation is taken into account in the framework of the van der Waals, Cahn-Hilliard method. The equation of state of the mixture has been built, and the boundary of stability of homogeneous states, the diffusion spinodal, has been determined. The paper discusses the problems of building a nucleation theory for gas-filled mixtures and states a good agreement between theory and experiment at nucleation rates J similar or equal to 10(7) m(-1) s(-1) when the size effect in nucleation is taken into account |
B 16 Baidakov, V. G. Attainable superheating of solutions of cryogenic liquids / V. G. Baidakov // Journal of Engineering Thermophysics. - 2007. - Vol.16, №3. - С. 109-118 Рубрики: ФИЗИКА Кл.слова (ненормированные): BOILING-UP -- CRYOGENIC LIQUIDS -- KRAMERS-ZELDOVICH METHOD Аннотация: The kinetics of spontaneous boiling-up of superheated binary solutions of cryogenic liquids is studied. Within the framework of the Kramers-Zeldovich method, an expression is obtained for the steady state rate of homogeneous nucleation in a solution that takes into account free-molecular and diffusion regimes of the substance supply to a growing bubble. Viscous and inertial forces are also taken into account in the study of the nucleus growth dynamics. The work of critical nucleus formation is determined within the framework of the Gibbs and van der Waals capillarity theories. The dependence of the surface tension of critical bubbles in the solution on their size is investigated. The temperature of attainable superheating and nucleation rates in superheated solutions of cryogenic liquids with complete or partial solubility of the components are determined by a method of lifetime measurement. The experiments were conducted in a wide range of pressures and solution concentrations. The measurement results are compared with the theory of homogeneous nucleation taking or not taking into account the size effect in nucleation. It has been found that, by taking into account the size dependence of the surface tension of a nucleus, better agreement between the theory and experiment is obtained. The boundary of essential instability of the solution, that is, the diffusion spinodal, is computed |
K 79 Koverda, V. P. Statistics of fluctuations with a 1/f spectrum at phase transitions in a spatially distributed system / V. P. Koverda, V. N. Skokov // Physica A. - 2011. - Vol. 390, № 13. - С. 2468-2479 Рубрики: ФИЗИКА Кл.слова (ненормированные): 1/f-NOISE -- FIRST PASSAGE TIME -- AVALANCHES Аннотация: A study has been made on the statistics of fluctuations in a spatially distributed system, which describes the interaction of nonequilibrium phase transitions. It is shown that at a certain intensity of external white noise acting on phase transitions, the time and spatial spectra of fluctuations have power laws S(f)∼f−α and S(k)∼k−γ. The dependence of the exponents α and γ on the value of the diffusion coefficient determining the spatial interaction of fluctuations have been found. Extreme low-frequency fluctuations has been revealed and distribution functions of their duration P(τ)∼τ−β and size P(s)∼s−ν have been determined. It has been found that the exponent α of the frequency dependence of time spectra and the exponent β of the distribution function of the fluctuation duration are related by the relation α+β=2. The exponent of the spatial spectrum γ and the exponent of the size distribution function ν are related by a similar relation: γ+ν=2. The results of experimental studies on fluctuations in a typical nonequilibrium phase transition such as transient modes of water boiling on a wire heater are presented. It was demonstrated that the critical exponents, which describe the power dependence of power spectra of fluctuations and the amplitude distribution of extreme surges, are related by the relation α+β=2 both in experiments and in the theoretical model of interacting heterogeneous phase transitions |
B 16 Baidakov, V. G. Boiling-Up Kinetics of Solutions of Cryogenic Liquids / V. G. Baidakov, J. W. P. Schmelzer // Nucleation Theory and Applications. - Berlin : Wiley-VCH Verlag, 2005. - С. 126-175 Рубрики: ФИЗИКА Кл.слова (ненормированные): NUCLEATION KINETICS -- DIFFUSION TENSOR OF NUCLEI -- NUCLEATION RATES |
B 16 Baidakov, V. G. Crystal nucleation and the solid–liquid interfacial free energy [Electronic resource] / V. G. Baidakov, A. O. Tipeev // Journal of Chemical Physics. - 2012. - Vol.136, №7. - P074510 Рубрики: ФИЗИКА Кл.слова (ненормированные): 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 = const. \\\\Expert2\\nbo\\Journal of Chemical Physics\\2012, V.136, p.074510.pdf |
B 16 Baidakov, V. G. Transport coefficients and the spinodal of a fluid [Electronic resource] / V. G. Baidakov // Physical Review E: Statistical, Nonlinear, and Soft Matter Physics. - 2012. - Vol.86, №2. - P021201 Рубрики: ФИЗИКА Кл.слова (ненормированные): 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 |
P 80 Polukhin, V. A. Effect of the character of the (Ni, Pd) cluster/graphene interatomic bonds on the thermosize effects and structural-isomeric transitions [Электронный ресурс] / V. A. Polukhin, E. D. Kurbanova, A. E. Galashev // RUSSIAN METALLURGY. - 2012. - №8. - P696-704 Рубрики: ФИЗИКА Кл.слова (ненормированные): COMPREHENSIVE ANALYSIS -- HEATING CONDITIONS -- INTERATOMIC BONDS Аннотация: The thermal evolution of nanoclusters is studied by molecular dynamics simulation to analyze the nucleation and kinetics of the kinetic processes that determine the basic factors of the onset of premelting and the loss of thermal stability of a two-dimensional system of transition-metal (Pd, Ni) nanoclusters located on a graphene substrate. A comprehensive analysis reveals the effect of the initial structural characteristics of nanoclusters, the heating conditions, and the kinetic factors during thermally activated diffusion on the nanostructuring in the thermal evolution of the nanoclusters. This evolution includes the following stages: isomerization, quasi-melting, and the decomposition of a given regular structure; it is classified as an order-disorder transition and as an analog of phase transitions in macroscopic systems on the nanoscale |
K 79 Koverda, V. P. Fluctuations with a 1/fα spectrum in nonequilibrium phase transitions in a spatially distributed system [Электронный ресурс] / V. P. Koverda, V. N. Skokov // Technical Physics. - 2010. - Vol.55, №4. - P442-448 Рубрики: ФИЗИКА Кл.слова (ненормированные): NONEQUILIBRIUM PHASE -- FLUCTUATIONS -- NOISE Аннотация: Statistics of fluctuations in a spatially distributed system describing the interaction of nonequilibrium phase transitions is studied. It is shown that for a certain value of the intensity of external white noise acting on phase transitions, the time and spatial spectra of fluctuations exhibit power dependences S(f) ~ f-α and S(k) ~ k-γ. The dependence of exponents α and γ on the diffusion coefficient determining the spatial interaction of fluctuations is determined. Extremal low-frequency fluctuations are singled out and the distribution functions of their duration (P(τ) ~ τ-β) and size (P(s) ~ s-ν)) are constructed. It is found that exponent α in the time spectral dependence and exponent β in the duration of fluctuations are connected via the relation α + β = 2. Exponents γ and ν in the spatial spectral dependence and in the size distribution function are connected via an analogous relation (γ + ν = 2). |
S 68 Smolyak, B. M. Slowing-down of the vortex motion in the flux creep process by counter forces exerted on the vortex ends [Electronic resource] / B. M. Smolyak, M. S. Zakharov // Superconductor Science and Technology. - 2012. - Vol.25, №12. - С. 125019. - Bibliogr. : p. 125019 (15 ref.) Рубрики: ФИЗИКА Кл.слова (ненормированные): BIPOLAR CURRENTS -- CRITICAL STATE -- FERROMAGNETS Аннотация: The effect of the suppression of flux creep in a high-temperature superconductor by counter forces exerted on the vortex ends was studied. These forces, acting in the opposite direction to the process of vortex diffusion, arise when the magnetized sample is put into a nonuniform magnetic field. The source of the field should be placed near the surface of the superconductor where the flux line ends are located. The critical states in a disk sample placed near a ferromagnet or permanent magnets were calculated. The results of the calculations verify the bipolar current structure and, therefore, the existence of counter Lorentz forces in the near-surface region. It was shown that in addition to the Lorentz force it is necessary to take into account the magnetic force acting on the vortex ends in the external nonuniform magnetic field. Depending on the direction of this force, the magnetic relaxation slows down or accelerates \\\\expert2\\NBO\\Superconductor Science and Technology\\2012. V. 25, N12. P. 125019.pdf |
E 93 Evaluation of metastable region boundaries for liquid and solid states in MD simulations [Electronic resource] / G. V. Ionov, V. V. Dremov, A. V. Karavaev, S. P. Protsenko, V. G. Baidakov, A. O. Tipeev // Journal of Physics : Condensed Matter. - 2014. - Vol.500, №17. - Article number 172004. - Bibliogr. : (6 ref) Рубрики: ФИЗИКА Кл.слова (ненормированные): DIFFUSION -- DYNAMIC LOADS -- LIQUIDS Аннотация: An automatic method based on MD simulations was developed for detecting and tracing the boundaries of metastable states of superheated crystal and supercooled liquid. The main criterion of the detection of early nucleation of new phase is the self-diffusion coefficient temperature dependence. The scanning for nucleation events is performed at continuous temperature change. The set of independent nucleation events at a given pressure allows evaluation of temperature dependence of specific nucleation frequency. The collection of a large number of these calculations allows accurate approximation of pressure and temperature dependence of the specific nucleation frequency in both directions between phases. This dependence allows estimating the behavior of the free energy in the region between superheating and supercooling curves. In addition, dependence of nucleation frequency on pressure and temperature provides an opportunity to integrate the probability of nucleation under dynamic loading and subsequent release and thus to determine the likelihood of the crystallization and melting. The technique was applied to tin. MD simulation was carried out with the help of the EAM interatomic potential, well reproducing the properties of BCC phase. |
П 46 Пожарская, Г. И. Диффузия броуновских частиц в критической области расслаивания раствора альфа, альфа/штрих-лутидин-вода [] = Diffusion of Brownian Particles in the Critical Region of a,a'-Lutidine-Water Solution Separation / Г. И. Пожарская, С. П. Самохин, В. П. Скрипов // Журнал физической химии. - 1996. - Т. 70, N4. - С. 652-654 Рубрики: ФИЗИКА Кл.слова (ненормированные): ДИФФУЗИЯ РАСТВОРА -- ЧАСТИЦЫ БРОУНОВСКИЕ -- БРОУНОВСКИЕ ЧАСТИЦЫ -- расслаивание растворов -- РАСТВОР АЛЬФА, АЛЬФА/ШТРИХ-ЛУТИДИН-ВОДА -- АЛЬФА, АЛЬФА/ШТРИХ-ЛУТИДИН-ВОДА -- АЛЬФА, АЛЬФА/ШТРИХ-ЛУТИДИН-ВОДА-ЛАТЕКС -- АЛЬФА, АЛЬФА/ШТРИХ -- ЛУТИДИН -- ВОДА -- ЛАТЕКС -- СПЕКТРОСКОПИЯ КОРРЕЛЯЦИОННАЯ -- КОРРЕЛЯЦИОННАЯ СПЕКТРОСКОПИЯ -- ОБЛАСТЬ ГОМОГЕННАЯ -- ГОМОГЕННАЯ ОБЛАСТЬ -- ТОЧКА КРИТИЧЕСКАЯ -- КРИТИЧЕСКАЯ ТОЧКА Аннотация: Методом корреляционной спектроскопии исследована серия растворов альфа, альфа/штрих-лутидин-вода-латекс в гомогенной области существования раствора альфа, альфа/штрих-лутидин-вода в окрестности критической точки расслаивания 10 в -4.5 степени < эпсилон = [T-Tc]Tc < 10 в -2.5 степени. Определены коэффициенты диффузии раствора и броуновских частиц |
C 74 Computer simulation of nucleation in a gas-saturated liquid [Electronic resource] / S. P. Protsenko, V. G. Baidakov, A. S. Teterin, E. R. Zhdanov // Journal of Chemical Physics. - 2007. - Vol. 126, № 9. - P094502/1-094502/14 Рубрики: ФИЗИКА Кл.слова (ненормированные): LIQUID Аннотация: Molecular dynamics methods have been used to investigate the kinetics of the liquid-gas phase transition in a two-component Lennard-Jones system at negative pressures and elastic stretches of the liquid to values close to spinodal ones. The molecular dynamics system consists of 2048 interacting particles with parameters of the Lennard-Jones potential for argon and neon. Density dependences of pressure and internal energy have been calculated for stable and metastable states of the mixture at a temperature T*?0.7±0.01 and three values of the concentration. The location of mechanical and the diffusion spinodals has been determined. It has been established that a gas-saturated mixture retains its stability against finite variations of state variables up to stretches close to the values near the diffusion spinodal. The statistic laws of the process of destruction of the metastable state have been investigated. The lifetimes of the metastable phase have been determined. It is shown that owing to the small height of the potential barrier that separates the microheterogeneous from the homogeneous state a system of finite size has a possibility to make the reverse transition from the microheterogeneous into the homogeneous state. The lifetimes of the system in the microheterogeneous state, as well as the expectation times of the occurrence of a critical nucleus, are described by Poissonian distributions. \\\\Expert2\\NBO\\Journal of Chemical Physics\\2007, v.126, p.094502, S.P.Protsenko.pdf |