Thermal expansion of crystals of the N2 type

Tolkachev, A. M.; Manzheliı̆, V. G.; Azarenkov, V. P.; Jeżowski, A.; Kosobutskaya, E.A.

doi:10.1016/0378-4363(81)90810-x

Cited by 3 publications

(8 citation statements)

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“…In the case of nitrous oxide a phase transition attributed to dipole ordering may occur at T < 11 K [8]. However according to the structure study [9] the «head-to-tail» order is absent in nitrous oxide condensates down to 2.2 K. A partial dipolar ordering reveales itself in peculiarities of the temperature dependence of the Grüneisen constant for solid N 2 O [10].…”

Section: Introductionmentioning

confidence: 92%

Structural peculiarities of quench-condensed pure and argon-doped nitrous oxide

Solodovnik

Danchuk

2003

Low Temperature Physics

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Electron diffraction studies have been carried out for condensed N 2 O and N 2 O-Ar films. Deposition took place at substrate temperatures of 10 and 20 K. The growth process of N 2 O deposits was studied. A strong effect of argon impurities on the structure of the nitrous oxide matrix has been observed. The phase separation of the solutions was studied. The equilibrium solubility of argon atoms in nitrous oxide is very low. Introduction of a small amount of argon impurity into the molecular lattice destroyed the crystal structure. An effect of the size of the sample on its structure was also studied.

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Section: Introductionmentioning

confidence: 92%

Structural peculiarities of quench-condensed pure and argon-doped nitrous oxide

Solodovnik

Danchuk

2003

Low Temperature Physics

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“…The data taken from Tolkachev et al (1978) and Tolkachev et al (1980) were both from the same experiment. However, Tolkachev notes that the smoothed data from Tolkachev et al (1978) contained misprints and so were reprinted in Tolkachev et al (1980). The data collected from Tolkachev et al (1978) and plotted in Figure 3 are not the smoothed data points but instead the raw data directly from the graph.…”

Section: Compiled Property Summarymentioning

confidence: 99%

Survey of Cryogenic Nitrogen Thermomechanical Property Data Relevant to Outer Solar System Bodies

Sagmiller

Hartwig

2020

Earth and Space Science

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The outer Solar System has many bodies of interest that have continued to captivate the planetary science community, recently Triton, a captured Kuiper belt object (KBO) of Neptune, and Pluto. Limited fly-by observational data shows evidence that nitrogen is the dominant constituent on these two bodies, potentially also existing on other KBOs as well. Current simulations related to answering fundamental science questions and also to develop future mission science packages and vehicles require accurate, reliable thermodynamic, and mechanical property data of solid and gaseous nitrogen at relevant surface and atmospheric conditions. This paper thus presents an exhaustive review of all available experimental N 2 property data dating back to 1887. Each historical study is systematically analyzed and summarized and then the consolidated database is assembled. Comments are made on the validity of data sets, with an emphasis on specific heat capacity at constant pressure and constant volume (C P , C v), thermal conductivity (κ), volume thermal expansion (α V), density (ρ), equilibrium vapor pressure (P vap), heat of sublimation (ΔH S), heat of transition (ΔH T), Gruneisen parameter (γ G), adiabatic and isothermal compressibility (x S , x T) and moduli of elasticity (C 11 , C 12 , C 13 , C 33 , C 44). Results here can be used directly and immediately to perform new simulations on N 2-based bodies as well as to determine gaps in the consolidated database for future experiments.

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“…Ne 20.18 l 00 = 4.4637 [15] 1925.9 [16,17] indicates the hcp structure. The letters above the values of k n indicate the following structures: fct -facecentered tetragonal (of the In type) with k n ≅ 11, k p ≅ ≅ 0.72, and ξ 3 = 0.81818; sm -simple monoclinic (α-Pu -the densest of 6-phases of plutonium) with k n ≅ 11, k p ≅ 0.72, and ξ 3 = 0.81818; bct -body-centered tetragonal (α-Hg, α-Pa) with k n ≅ 10, k p ≅ 0.69, and ξ 3 = 0.9; orh -orthorhombic (α-Ga, α-U, α-Np)…”

Section: Parameters Of Interatomic Potential For Metalsmentioning

confidence: 99%

“…A linear interpolation of the values for H 2 and D 2 from Table 1 gives the following equations: (16) Here, m is an amu, subscript 1 indicates the upper value of the parameter from Table 1 calculated by the Gr neisen parameter from [20], and subscript 2 -the lower value obtained using γ 00 from [21]. Table 3 gives the parameters of potential (1) and the values of Debye temperature (6), Gr neisen parameter (7), sublimation energy (5), molar volume (2), and specific surface energy of {100} face at T = = 0 K and P = 0 (i.e., at R = 1), calculated by these parameters [50], (17) One can see in Table 3 that the values of L 00 and V 00 calculated by us and the experimentally obtained values from [15,51,52] agree quite adequately (especially in view of the accuracy of their experimental determination).…”

Section: Isotopes Of Hydrogenmentioning

confidence: 99%

“…The parameters of Mie-Lennard-Jones potential (1) determined by Figs. 7-10 for fcc crystals of radon and calculated by formulas (16) for hcp crystals of hydrogen isotopes. For all crystals, k n = 12, k p = 0.7405, ξ 3 = 0.75, α s = 0.7937 * The surface tension of the liquid phase σ liquid and the temperature (in brackets) at which it was estimated in [52] for P = 0.…”

Section: Isotopes Of Hydrogenmentioning

confidence: 99%

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The calculation of the parameters of the Mie-Lennard-Jones potential

Magomedov

2006

High Temp

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A method is suggested for self-consistent calculation of the characteristics of interatomic potential of the type of Mie-Lennard-Jones potential, which is based on the lattice parameter, sublimation energy, Debye temperature, and Gr neisen parameter at zero values of temperature and pressure. The method, which takes into complete account the "zero-oscillation" energy, is valid for use with both classical and quantum substances. The results of calculation of the parameters of this potential for Van der Waals crystals demonstrated good agreement with the data of other authors. The parameters of interatomic potential are determined for 70 elements which exhibit the chemical bond of predominantly metallic type. The correlation of the potential parameters with the position of the element in the periodic table is analyzed. The ranges of permitted values of the parameters of the potential are estimated. The parameters of the potential for Rn, T 2 , HD, HT, and DT are predicted, and the values of the Debye temperature, Gr neisen parameter, sublimation energy, molar volume, and of the specific surface energy of {100} face are calculated for these crystals. The variation of the parameters of the potential with the variation of the isotopic composition of crystal is estimated.

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Thermal expansion of crystals of the N2 type

Cited by 3 publications

References 3 publications

Structural peculiarities of quench-condensed pure and argon-doped nitrous oxide

Structural peculiarities of quench-condensed pure and argon-doped nitrous oxide

Survey of Cryogenic Nitrogen Thermomechanical Property Data Relevant to Outer Solar System Bodies

The calculation of the parameters of the Mie-Lennard-Jones potential

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