Estimation of the Critical Point Parameters of the Liquid–Vapor Phase Transition of Metals Using Experiments on the Isentropic Expansion of Shock-Compressed Porous Samples

The isentropic expansion of shock-compressed porous metals (Cu, W, Nb) are experimentally studied, and the experimental results are used to determine their thermodynamic parameters and electrical conductivity. These results allow us to conclude that some porous metals after shock compression and exp...

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Veröffentlicht in:Journal of experimental and theoretical physics 2021, Vol.132 (1), p.102-109
Hauptverfasser: Emel’yanov, A. N., Shakhray, D. V., Kim, V. V.
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creator Emel’yanov, A. N.
Shakhray, D. V.
Kim, V. V.
description The isentropic expansion of shock-compressed porous metals (Cu, W, Nb) are experimentally studied, and the experimental results are used to determine their thermodynamic parameters and electrical conductivity. These results allow us to conclude that some porous metals after shock compression and expansion have a two-phase structure. The presence of an additional phase at the isentropic expansion of these metals significantly changes the character of evaporation and the critical point parameters of the liquid–vapor phase transition that are estimated using experiments on the isentropic expansion of shock-compressed porous metals. In addition, the formation of the two-phase structure explains the large difference between the critical point parameters estimated by different methods for a large group of metals (U, W, V, Co, Mo, Ta, etc.).
doi_str_mv 10.1134/S1063776121010015
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subjects Classical and Quantum Gravitation
Copper
Critical point
Degassing of metals
Disorder
Electric properties
Electrical conductivity
Electrical resistivity
Elementary Particles
Metals
Niobium
Order
Parameter estimation
Particle and Nuclear Physics
Phase Transition in Condensed System
Phase transitions
Physics
Physics and Astronomy
Porous metals
Quantum Field Theory
Relativity Theory
Solid phases
Solid State Physics
Vapor phases
title Estimation of the Critical Point Parameters of the Liquid–Vapor Phase Transition of Metals Using Experiments on the Isentropic Expansion of Shock-Compressed Porous Samples
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