Thermodynamic Functions and Electrical Resistivity of Fluid Lead in the Metal–Nonmetal Transition Range

Kondratyev, A. M.; Korobenko, V. N.; Rakhel, A. D.

doi:10.1134/s1063776118120178

Cited by 9 publications

(13 citation statements)

References 24 publications

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“…Equations of state (EOSs) of materials are required for hydrodynamic modeling of processes with high energy concentration [1][2][3]. Such processes take place, for example, during a high-speed collision of bodies [4][5][6], when a substance is exposed to intense laser radiation [7][8][9][10] or beams of high-energy particles [11][12][13], during an electric explosion of conductors [14][15][16][17]. The EOS essentially determines the correspondence of the results of numerical modeling to the physical characteristics of flows arising in the modeled process [2,18,19].…”

Section: Introductionmentioning

confidence: 99%

Equation of state for iridium at high pressures

Khishchenko

2022

J. Phys.: Conf. Ser.

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Section: Introductionmentioning

confidence: 99%

Equation of state for iridium at high pressures

Khishchenko

2022

J. Phys.: Conf. Ser.

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“…The experimental method used in this work, which has been developed for investigation of thermophysical properties of liquid metals and carbon at high temperatures and pressures, is described elsewhere [19,32]. Here we will only briefly explain the essence of this method and indicate some improvements made in this work.…”

Section: Description Of the Experimental Techniquementioning

confidence: 99%

“…The current through the samples was measured in the first setup by using a home-made I-dot sensor, while in the second-by a Stangenes Industries current transformer (model 3-0.01/R). To measure the thermal expansion of the samples the laser interferometer technique was utilized [19]. In the first setup the wavelength of the laser was 532 nm and in the second it was 1550 nm.…”

Section: Description Of the Experimental Techniquementioning

confidence: 99%

“…To detect the M-NM transitions in metals with the higher critical points, the dynamic experimental technique [18] has been developed. Further improvement of this technique [19] made it possible the measurements to be performed with the accuracy comparable to that of the static experiments.…”

Section: Introductionmentioning

confidence: 99%

“…We study specifically this alloy because a comparison of the behavior of the thermodynamic functions and the electrical resistivity of LBE near the M-NM transition with those for pure Pb [19] makes it possible to investigate the effect of the atomic structure of the liquid on the mechanism of the M-NM transition. The point is that the atomic and macroscopic properties of Pb and Bi are very similar.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Metal–non-metal transition in lead–bismuth eutectic

Kondratyev

Korobenko

Rakhel

2022

J. Phys.: Condens. Matter

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Thermodynamic functions and electrical resistivity of Pb-Bi eutectic alloy have been measured over wide ranges of specific volume and pressure in the liquid and gaseous state. The experimental data show a crossover from metallic to insulating behavior in the electrical resistivity of the alloy when its specific volume increases. It is found that in the crossover region the constant volume temperature coefficient of resistivity changes sign from positive to negative and passes through zero at a value of the specific volume which is 2.4 times larger than that in normal state. The second salient feature of the alloy revealed by these experiments is that the isochores plotted in the specific internal energy – pressure plane are straight lines. Based on these experimental data and using an earlier developed approach, an equation of state of the alloy has been constructed whose accuracy is determined mainly by the errors of the measurements. It is shown that this equation of state can be used to obtain direct estimates of the specific volume and pressure at the critical point of the liquid-gas transition as well as the critical volume for the metal-non-metal transition observed in this eutectic. The results indicate that the critical specific volumes for these two transitions are equal, and the metal-non-metal transition can be described by the classical percolation theory.

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The calculations of thermophysical properties of low-temperature gallium plasma

Apfelbaum

2020

Physics of Plasmas

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We have developed a model for the calculation of the thermophysical properties (pressure, internal energy, conductivity, thermal conductivity, and thermal power) and the chemical composition of gallium plasma at temperatures 10–100 kK and densities less than 6 g/cm3. In this area, there have not been any published data on the considered properties for gallium plasma until now. The model was constructed on the basis of the chemical approach and relaxation time approximation. We have also estimated the region of applicability of the model due to the used approximations.

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Thermodynamic Functions and Electrical Resistivity of Fluid Lead in the Metal–Nonmetal Transition Range

Cited by 9 publications

References 24 publications

Equation of state for iridium at high pressures

Equation of state for iridium at high pressures

Metal–non-metal transition in lead–bismuth eutectic

The calculations of thermophysical properties of low-temperature gallium plasma

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