T 44 The equation of state of metastable liquid xenon near the critical point [Text] / V. G. Baidakov, A. M. Rubshtein, V. R. Pomortsev, I. I. Sulla // Physics Letters A. - 1988. - V. 131, N 2. - P119-121 Рубрики: ФИЗИКА Кл.слова (ненормированные): УРАВНЕНИЯ СОСТОЯНИЯ -- КСЕНОН МЕТАСТАБИЛЬНЫЙ -- МЕТАСТАБИЛЬНЫЙ КСЕНОН -- КСЕНОН -- ТОЧКИ КРИТИЧЕСКИЕ -- КРИТИЧЕСКИЕ ТОЧКИ -- КСЕНОН ЖИДКИЙ -- ЖИДКИЙ КСЕНОН -- КРИТИЧЕСКИЕ ТОЧКИ -- Xe (КСЕНОН) -- ТЕПЛОФИЗИКА |
B 16 Baidakov, V. G. Isochoric heat capacity of metastable liquid xenon near the critical point [Text] / V. G. Baidakov, A. M. Rubshtein // Physics Letters A. - 1988. - V. 131, N 7-8. - P454-456 Рубрики: ФИЗИКА Кл.слова (ненормированные): СПОСОБНОСТЬ ТЕПЛОВАЯ -- ТЕПЛОВАЯ СПОСОБНОСТЬ -- КСЕНОН МЕТАСТАБИЛЬНЫЙ -- МЕТАСТАБИЛЬНЫЙ КСЕНОН -- ТОЧКИ КРИТИЧЕСКИЕ -- КРИТИЧЕСКИЕ ТОЧКИ -- СПОСОБНОСТЬ ИЗОХОРНАЯ -- ИЗОХОРНАЯ СПОСОБНОСТЬ -- КСЕНОН ЖИДКИЙ -- ЖИДКИЙ КСЕНОН -- КСЕНОН -- Xe (КСЕНОН) -- ТЕПЛОФИЗИКА |
S 66 Skokov, V. N. Self-sustaining oscillactions and chaotic transitions in current-carrying thin HTSP films cooled by boiling nitrogen [Text] / V. N. Skokov, V. P. Koverda, N. M. Semenova // Physics Letters A. - 1994. - V. 193, N 1. - P144-147 Рубрики: ФИЗИКА Кл.слова (ненормированные): КОЛЕБАНИЯ САМОПОДДЕРЖИВАЮЩИЕСЯ -- САМОПОДДЕРЖИВАЮЩИЕСЯ КОЛЕБАНИЯ -- ПЕРЕХОДЫ ХАОТИЧЕСКИЕ -- ХАОТИЧЕСКИЕ ПЕРЕХОДЫ -- НИТРОГЕН КИПЯЩИЙ -- КИПЯЩИЙ НИТРОГЕН -- ПЛЕНКИ ТОНКИЕ -- ТОНКИЕ ПЛЕНКИ -- HTSP ПЛЕНКИ ТОКОНЕСУЩИЕ -- ТОКОНЕСУЩИЕ ПЛЕНКИ -- ТЕПЛОФИЗИКА |
R 35 Regular and chaotic thermal oscillations in current-carrying thin HTSC films [Text] / V. N. Skokov, V. P. Koverda, V. B. Ivakin, N. M. Semenova // Journal of Physics D. Applied Physics. - 1996. - V. 29, №3. - P843-847 Рубрики: ФИЗИКА Кл.слова (ненормированные): КОЛЕБАНИЯ РЕГУЛЯРНЫЕ -- РЕГУЛЯРНЫЕ КОЛЕБАНИЯ -- КОЛЕБАНИЯ ХАОТИЧЕСКИЕ -- ХАОТИЧЕСКИЕ КОЛЕБАНИЯ -- HTSC ПЛЕНКИ ПОТОКОНЕСУЩИЕ -- ПОТОКОНЕСУЩИЕ ПЛЕНКИ -- ПЛЕНКИ HTSC -- КОЛЕБАНИЯ ТЕРМИЧЕСКИЕ -- ТЕРМИЧЕСКИЕ КОЛЕБАНИЯ -- HTSC ПЛЕНКИ ТОНКИЕ -- ТОНКИЕ ПЛЕНКИ -- ПЛЕНКИ HTSC -- ТЕПЛОФИЗИКА Аннотация: We present the results of an experimental study of the dynamics of thermal self-oscillations of a normal zone in thin films of high-temperature superconductors (HTSC) connected to an external circuit with an inductance and cooled by boiling nitrogen. The response of the system to a harmonic driving force has been studied. Spectral and dynamical characteristics of various oscillative regimes have been determined. It is shown there arises a state of a deterministic chaos in some range of driving frequencies and amplitudes. An effective of synchronization of periodic self-oscillations of a normal zone and thermo-hydrodynamical oscillations caused by the boiling of liquid nitrogen near a film surface has been recognized |
B 16 Baidakov, V. G. Nucleation in superheated gas-saturated solutions [Electronic resource] : i. Boiling-up kinetics / V. G. Baidakov // Journal of Chemical Physics. - 1999. - V.110, N8. - P3955-3960 Рубрики: ФИЗИКА Кл.слова (ненормированные): ЗАРОДЫШЕОБРАЗОВАНИЕ -- РАСТВОР ГАЗОНАСЫЩЕННЫЙ -- растворы перегретые -- КИНЕТИКА КИПЕНИЯ \\\\expert2\\nbo\\Journal of Chemical Physics\\1999, v.110, p.3955.pdf |
B 16 Baidakov, V. G. Acoustic Cavitation in a Highly Superheat Liquid [Text] / V. G. Baidakov, A. M. Kaverin, V. P. Skripov // Soviet Physics Acoustics-USSR. - 1981. - V.27, Is.5. - P387-390 Рубрики: ФИЗИКА Кл.слова (ненормированные): КАВИТАЦИЯ АКУСТИЧЕСКАЯ -- жидкости сильно перегретые |
B 16 Baidakov, V. G. The velocity of sound and the thermodynamic stability of liquid argon [Text] / V. G. Baidakov, V. P. Skripov // Journal of Experimental and Theoretical Physics. - 1978. - V.48, N3. - P509-513 Рубрики: ФИЗИКА Кл.слова (ненормированные): АРГОН ЖИДКИЙ -- СКОРОСТЬ ЗВУКА -- СТАБИЛЬНОСТЬ ТЕРМОДИНАМИЧЕСКАЯ -- АРГОН -- Ar -- ЗВУК |
B 16 Baidakov, V. G. Nucleation in superheated liquid argon-kripton solutions [Text] / V. G. Baidakov, A. M. Kaverin, G. Sh. Boltachev // Journal of Chemical Physics. - 1997. - V.106, N13. - P5648-5657 Рубрики: ФИЗИКА Кл.слова (ненормированные): АРГОН-КРИПТОН РАСТВОРИМЫЙ -- ЗАРОДЫШЕОБРАЗОВАНИЕ -- АРГОН-КРИПТОН ЖИДКИЙ -- АРГОН-КРИПТОН ПЕРЕГРЕТЫЙ -- АРГОН -- Ar -- КРИПТОН -- Kr |
B 16 Baidakov, V. G. Curvature dependence of the surface tension of liquid and vapor nuclei [Text] / V. G. Baidakov, G. Sh. Boltachev // Physical Review E: Statistical, Nonlinear, and Soft Matter Physics. - 1999. - V.59, N1. - P469-475 Рубрики: ФИЗИКА Кл.слова (ненормированные): КРИВАЯ ЗАВИСИМОСТИ -- УРОВЕНЬ НАПРЯЖЕНИЯ -- ЗАРОДЫШИ ЖИДКИЕ -- ЗАРОДЫШИ ПАРОВЫЕ \\EXPERT2\NBO\Physical Review E\1999, v.59, N 1, p. p469.pdf |
N 91 Nucleation of liquid xenon near the critical point [Text] / V. G. Baidakov, A. M. Rubshtein, T. A. Evdokimova, V. P. Skripov // Physics Letters A. - 1982. - V. 88, N 4. - P196-198 Рубрики: ФИЗИКА Кл.слова (ненормированные): ЗАРОДЫШЕОБРАЗОВАНИЕ -- КСЕНОН ЖИДКИЙ -- ЖИДКИЙ КСЕНОН -- ТОЧКИ КРИТИЧЕСКИЕ -- КРИТИЧЕСКИЕ ТОЧКИ -- КСЕНОН -- Xe (КСЕНОН) -- ТЕПЛОФИЗИКА |
B 16 Baidakov, V. G. Nucleation in a superheated nitrogen-helium solution [] / V. G. Baidakov // Chemical Physics Letters. - 2008. - Vol. 462, № 4-6. - С. 201-204 Рубрики: ФИЗИКА Кл.слова (ненормированные): HELIUM Аннотация: The method of lifetime measurement has been used to investigate the nucleation of the vapor phase in a superheated liquid nitrogen–helium solution. Temperature dependences of the mean lifetime of a metastable solution have been obtained in experiments at pressures p = 0.5, 1.0 MPa and several values of the mixture concentration. The nucleation rate J has been calculated. It varied in experiments from 104 tо 108 s?1 m?3. The results of experiments are compared with homogeneous nucleation theory. The paper deals with the size effect on the surface tension of a nucleus and the work of its formation. \\\\Expert2\\nbo\\Chemical Physics Letters\\2008, v. 462, p.201.pdf |
V 70 Vinogradov, V. E. Explosive cavitation in superheated liquid argon [Text] / V. E. Vinogradov, P. A. Pavlov, V. G. Baidakov // Journal of Chemical Physics. - 2008. - Vol. 128, № 23. - P234508/1-234508/6 Рубрики: ФИЗИКА Кл.слова (ненормированные): ARGON Аннотация: The kinetics of explosive boiling-up of liquid argon has been investigated at negative pressures created by the reflection of a compression pulse 3–5 µs long from the free surface of a liquid by the method of liquid pulse heating on a thin platinum wire (with a rate of temperature increase of about 1 K/µs). The limiting superheats T* (stretches p*), the effective nucleation rate J*, and the derivative GT=(d ln J/dT)T=T* have been determined by experimental data on the thermal perturbation of a wire probe and the results of solution of the problem on the initial stage of explosive boiling-up of a liquid. The experimental data are compared with homogeneous nucleation theory. \\\\Expert2\\nbo\\Journal of Chemical Physics\\2008, v.128, p.234508.pdf |
B 16 Baidakov, V. G. The isochoric heat capacity of a metastable Lennard-Jones fluid [Electronic resource] / V. G. Baidakov, S. P. Protsenko, Z. R. Kozlova // Chemical Physics Letters. - 2007. - Vol. 447, № 4-6. - P236-240 Рубрики: ФИЗИКА Кл.слова (ненормированные): LENNARD-JONES FLUID Аннотация: The article presents the results of molecular-dynamics calculations of the isochoric heat capacity, cv, and the (p, ?, T) – properties of the Lennard-Jones fluid in the region of liquid–gas phase transition in stable and metastable states. The system under investigation contains 2048 particles, the cut-off radius of the potential is chosen equal to 6.78?. The results of computations of the (p, ?, T) – properties have been used to approximate the location of the spinodal. Values of cv have been determined along the gas and the liquid branches of the spinodal. A thermodynamic relation that determines the value of cv on the spinodal in terms of derivatives with respect to temperature of the entropy, pressure and specific volume along the spinodal has been obtained. It is shown that molecular-dynamics data are in agreement with the results of the thermodynamic analysis.???? \\\\Expert2\\NBO\\Chemical Physics Letters\\2007, v. 447, p.236.pdf |
M 61 Metastable extension of the liquid-vapor phase equilibrium curve and surface tension [Electronic resource] / V. G. Baidakov, S. P. Protsenko, Z. R. Kozlova, G. G. Chernykh // Journal of Chemical Physics. - 2007. - Vol. 126, № 21. - P214505/1-214505/9 Рубрики: ФИЗИКА Кл.слова (ненормированные): LIQUID Аннотация: The method of molecular dynamics has been used to calculate the parameters of liquid-vapor phase equilibrium and the surface tension in a two-phase system of 4096 Lennard-Jones particles. Calculations have been made in a range from the triple point to near-critical temperature and also at temperatures below the triple point corresponding to the metastable equilibrium of a supercooled liquid and supersaturated vapor. To determine the surface tension, along with a mechanical approach a thermodynamic one has been used as well. The latter was based on calculation of the excess internal energy of an interfacial layer. It has been shown that in accuracy the thermodynamic approach is as good as the more sophisticated mechanical one. Low-temperature asymptotics of the phase-equilibrium curve and also of liquid and vapor spinodals have been considered in the Lennard-Jones and the van der Waals models. The behavior of the surface tension and the excess internal energy of an interfacial layer at T>0 is discussed. \\\\Expert2\\NBO\\Journal of Chemical Physics\\2007, v.126, p.214505.pdf |
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 |
B 16 Baidakov, V. G. Metastable extension of the sublimation curve and the critical contact point [Electronic resource] / V. G. Baidakov, S. P. Protsenko // Journal of Chemical Physics. - 2006. - Vol. 124, № 23. - P231101/1-231101/3 Рубрики: ФИЗИКА Кл.слова (ненормированные): SUPERHEATED LIQUIDS Аннотация: Molecular dynamics methods have been employed in order to calculate the (p,?,T)-properties and the internal energy of gas and crystal phases in stable and metastable equilibrium coexistence states for a model system consisting of 2048 Lennard-Jones particles. Thermal and caloric equations of state and the spinodal curves of the vapor and crystal phases have been determined. A new algorithm for the computation of phase equilibrium curves is suggested. Employing this method, the sublimation curve and its metastable extension to temperatures above the triple point have been calculated. It is found that the crystal-gas phase equilibrium terminates on the spinodal of the superheated crystal. The point of contact of the sublimation line and the spinodal is a singular point of the thermodynamic surface of states of a simple system considered. \\\\Expert2\\NBO\\Journal of Chemical Physics\\2006, v.124, p.231101.pdf |
S 34 Schmelzer, J. W. P. Classical and generalized Gibbs' approaches and the work of critical cluster formation in nucleation theory [Electronic resource] / J. W. P. Schmelzer, G. Sh. Boltachev, V. G. Baidakov // Journal of Chemical Physics. - 2006. - Vol. 124, № 19. - P194503/1-194503/18 Рубрики: ФИЗИКА Кл.слова (ненормированные): CLUSTERS Аннотация: In the theoretical interpretation of the kinetics of first-order phase transitions, thermodynamic concepts developed long ago by Gibbs are widely employed giving some basic qualitative insights into these processes. However, from a quantitative point of view, the results of such analysis, based on the classical Gibbs approach and involving in addition the capillarity approximation, are often not satisfactory. Some progress can be reached here by the van der Waals and more advanced density functional methods of description of thermodynamically heterogeneous systems having, however, its limitations in application to the interpretation of experimental data as well. Moreover, both mentioned theories—Gibbs’ and density functional approaches—lead to partly contradicting each other’s results. As shown in preceding papers, by generalizing Gibbs’ approach, existing deficiencies and internal contradictions of these two well-established theories can be removed and a new generally applicable tool for the interpretation of phase formation processes can be developed. In the present analysis, a comparative analysis of the basic assumptions and predictions of the classical and the generalized Gibbs approaches is given. It is shown, in particular, that—interpreted in terms of the generalized Gibbs approach—the critical cluster as determined via the classical Gibbs approach corresponds not to a saddle but to a ridge point of the appropriate thermodynamic potential hypersurface. By this reason, the classical Gibbs approach (involving the classical capillarity approximation) overestimates as a rule the work of critical cluster formation in nucleation theory and, in general, considerably. \\\\Expert2\\NBO\\Journal of Chemical Physics\\2006, v.124, p.194503.pdf |
B 16 Baidakov, V. G. Extended version of the Van der Waals capillarity theory [Electronic resource] / V. G. Baidakov, G. Sh. Boltachev // Journal of Chemical Physics. - 2004. - Vol. 121, № 17. - P8594-8601 Рубрики: ФИЗИКА Кл.слова (ненормированные): VAN-DER-WAALS CHAIN-MOLECULE FLUID Аннотация: An extended version of the van der Waals capillarity theory describing the liguid-vapor interface in the temperature range from the triple to the critical point is suggested. A model functional of thermodynamic potential for a two-phase Lennard-Jones system taking into account the effect of the highest degree terms of gradient expansion has been constructed. The identity of the thermodynamic and the mechanical definition of Tolman’s length has been proved in the framework of the adopted form of functional. The properties of nuclei of the liquid and the vapor phase are described. The paper determines: the work of formation of a nucleus, density profiles, size dependences of the surface tension, and the parameter ? in the Gibbs-Tolman-Koenig-Buff equation.© 2004 American Institute of Physics. \\\\Expert2\\NBO\\Journal of Chemical Physics\\2004, v.121, p.8594, V. G. Baidakov.pdf |
B 74 Boltachev, G. Sh. Space charge influence on the angle of conical spikes developing on a liquid-metal anode [Electronic resource] / G. Sh. Boltachev, N. M. Zubarev, O. V. Zubareva // Physical Review E: Statistical, Nonlinear, and Soft Matter Physics. - 2008. - Vol. 77, № 5-2. - P056607/1-056607/10 Рубрики: ФИЗИКА Кл.слова (ненормированные): ARGON Аннотация: The influence of the space charge of ions emitted from the surface of a conical spike on its shape has been studied. The problem of the calculation of the spatial distributions of the electric field, ion velocity field, and the space charge density near the cone tip has been reduced to the analysis of a system of ordinary differential equations. As a result of numerical solution of these equations, the criterion for the balance of the capillary and electrostatic forces on the conic surface of a liquid-metal anode has been determined. It has allowed us to relate the electrical current flowing through the system, the applied potential difference, and the cone angle. We have compared the results of our calculations with available experimental data concerning emission from the surface of pure liquid gallium, indium, tin, and some liquid alloys, such as Au+Si, Co+Ge, and Au+Ge. On the basis of the proposed model, explanations have been given for a number of specific features of the emissive behavior of different systems. \\\\Expert2\\NBO\\Physical Review E\\2008, v.77, N 5, p.056607.pdf |
S 61 Simulation of radial pulsed magnetic compaction of a granulated medium in a quasi-static approximation [Electronic resource] / G. Sh. Boltachev, N. V. Volkov, S. V. Dobrov, V. V. Ivanov, A. A. Nozdrin, S. N. Paranin // Technical Physics. - 2007. - Vol. 52, № 10. - P1306-1315 Рубрики: ФИЗИКА Кл.слова (ненормированные): MAGNETIC COMPACTION Аннотация: Compression adiabats for alumina-based nanopowders are obtained experimentally, various conditions of pulsed magnetic cylindrically symmetric radial compaction of the nanopowders are tested, and the density distribution in the compacted powders are measured. Using the compression adiabats obtained, quasi-static compaction of a granulated (porous) medium, which is considered to be compact, is simulated. The conditions of uniform and equilibrium compaction on a rigid rod are analyzed. The voidage distribution, stress tensor, and amount of accumulated deformation are calculated. The features of nanopowder compaction, specifically, the presence (absence) of voidage nonuniform radial distribution, are explained. \\\\Expert2\\NBO\\Technical Physics\\2007, v.52, N 10, p.1306.pdf |