Studies of Short-Range Intermolecular Forces

Leonas, V. B.

doi:10.1070/pu1972v015n03abeh004968

Cited by 57 publications

(5 citation statements)

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“…Computed using exponential repulsive type potential: U (r) = U 0 exp (-r/q) values of the parameters U 0 and q for different interactions are available in Ref. [37] 2 N-N Same as above but potential parameters are estimated using combinations rules between values of N-N 2 and N 2 -N 2 [10].…”

Section: Electron-molecule and Electron-atom Interactionsmentioning

confidence: 99%

Thermodynamic and Transport Properties of Two-Temperature Nitrogen-Oxygen Plasma

Ghorui

Heberlein

Pfender

2008

Plasma Chem Plasma Process

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Thermodynamic and transport properties are computed for a 17 species model of nitrogen-oxygen plasma under different degrees of thermal non-equilibrium, pressures and volume ratios of component gases. In the computation electron temperatures range from 300 to 45,000 K, mole fractions range from 0.8 to 0.2, pressures range from 0.1 atmosphere to 5 atmospheres, and thermal nonequilibrium parameters (T e /T h ) range from 1 to 20. It is assumed that all the electrons follow a temperature T e and the rest of the species in the plasma follow a temperature T h . Compositions are calculated using the two temperature Saha equation derived by van de Sanden et al. Updated energy level data from National Institute of Standards and Technology (NIST) and recently compiled collision integrals by Capitelli et al., have been used to obtain thermodynamic and transport properties. In the local thermodynamic equilibrium (LTE) regime, the results are compared with published data and an overall good agreement is observed.

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Section: Electron-molecule and Electron-atom Interactionsmentioning

confidence: 99%

Thermodynamic and Transport Properties of Two-Temperature Nitrogen-Oxygen Plasma

Ghorui

Heberlein

Pfender

2008

Plasma Chem Plasma Process

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“…The potential energy surfaces of the He-N~ system is given in [17] as an additive potential 0 where the interatomic potential is written as v(rk) =n exp ( -firk). (6) A procedure for calculating the anisotropic deflection function 0(b, ~2) for the additive type potential is described in [1].…”

Section: Description Of the Scattering By The Anisotropic Potential Imentioning

confidence: 99%

“…These gases may also be used as active media for both gas lasers and other physical-energetic devices. On the other hand, these studies encourage a development of ab initio calculation of interaction energies since they check calculation results for potential energy surfaces most reliably [1].…”

Section: Introductionmentioning

confidence: 99%

“…This method has been described in detail [1] and only a few points are worth mentioning to emphasize the advantages and disadvantages of the method. First, high relative velocities and small deflection angles guarantee the accuracy of the impulse and eikonal approximations used to interpret the measurements in classical and quasiclassical approaches.…”

Section: Introductionmentioning

confidence: 99%

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Study of differential scattering by non-spherical intermoleeular short-range forces for the systems He, Ar−N₂, CO, NO, CO₂

1982

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“…and the parameter k of this formula in a range of repulsed potentials 0.1-1 eV varies in limits 6-8 for atoms of inert gases [39]. Since the condition…”

Section: Phase Transitions In Macroscopic Atomic Systemsmentioning

confidence: 99%

Phase transitions in clusters

Physics Subject Headings (PhySH)

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General concepts of cluster phase transitions are reviewed as well as the cluster behavior near the melting point. Configuration excitation determines the nature of the cluster phase transitions, but a significant contribution to the entropy jump is given by thermal motion of atoms that allows one to characterize the phase transition through thermal atom motion in the Lindemann and other criteria. The phase coexistence near the melting point is the peculiarity of not large clusters. The void concept of phase transitions with a void as an elementary configuration excitation allows one to describe the phase transition for clusters and macroscopic atomic systems. Phase transitions in metal clusters resemble those in clusters with pairwise atomic interactions, but their numerical parameters are other because of a large number of isomers and an additional electron degree of freedom. Cluster models are convenient for the analysis of macroscopic atomic systems. They allow us to understand the nature of glassy transitions and the reason of absence of a stable infinite crystal lattice for gases at zero temperature and high pressure.

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Studies of Short-Range Intermolecular Forces

Cited by 57 publications

References 1 publication

Thermodynamic and Transport Properties of Two-Temperature Nitrogen-Oxygen Plasma

Thermodynamic and Transport Properties of Two-Temperature Nitrogen-Oxygen Plasma

Study of differential scattering by non-spherical intermoleeular short-range forces for the systems He, Ar−N₂, CO, NO, CO₂

Phase transitions in clusters

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Studies of Short-Range Intermolecular Forces

Cited by 57 publications

References 1 publication

Thermodynamic and Transport Properties of Two-Temperature Nitrogen-Oxygen Plasma

Thermodynamic and Transport Properties of Two-Temperature Nitrogen-Oxygen Plasma

Study of differential scattering by non-spherical intermoleeular short-range forces for the systems He, Ar−N2, CO, NO, CO2

Phase transitions in clusters

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Product

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Study of differential scattering by non-spherical intermoleeular short-range forces for the systems He, Ar−N₂, CO, NO, CO₂