FEW-PARAMETER EQUATION OF STATE OF COPPER Full article
| Journal |
Combustion, Explosion and Shock Waves
ISSN: 0010-5082 |
||
|---|---|---|---|
| Output data | Year: 2018, Volume: 54, Number: 4, Pages: 482-495 Pages count : 14 DOI: 10.1134/S0010508218040123 | ||
| Tags | equation of state of matter; Grüneisen coefficient; high energy density; high pressures and temperatures; metals; shock compression; thermodynamic properties | ||
| Authors |
|
||
| Affiliations |
|
Abstract:
A few-parameter equation of state in the Mie–Grüneisen form is proposed to describe shock compression of condensed matter. The equation is based on a postulated dependence of the Grüneisen coefficient on the specific volume and temperature Γ(V, T), which provides a qualitative description of compression of metal samples in strong shock waves. The curve of cold compression is found on the basis of the dependence Γ(V, T) with the use of a generalized formula for the Grüneisen function. Heat-induced oscillations of the crystal lattice are described in the Debye approximation. The resultant Grüneisen function has two free parameters. The values of other coefficients of the equation of state are determined from the reference data for matter under normal conditions and also from limiting values under extreme conditions. The model is tested by an example of copper. The derived equation of state describes the cold compression curve, normal isotherm, shock compressibility, as well as the copper unloading curves in density, pressure, and internal energy ranges for which experimental data are available. The thermodynamic characteristics of copper (isentropic modulus of volume compression, velocity of sound, Debye temperature, specific heat, linear expansion coefficient, and melting temperature) are calculated. Comparisons with available experimental data show that the proposed model, despite its simplicity, ensures a consistent description of a large array of experimental data in the region of high energy densities.
Cite:
GILEV S.D.
FEW-PARAMETER EQUATION OF STATE OF COPPER
Combustion, Explosion and Shock Waves. 2018. V.54. N4. P.482-495. DOI: 10.1134/S0010508218040123 WOS Scopus РИНЦ OpenAlex
FEW-PARAMETER EQUATION OF STATE OF COPPER
Combustion, Explosion and Shock Waves. 2018. V.54. N4. P.482-495. DOI: 10.1134/S0010508218040123 WOS Scopus РИНЦ OpenAlex
Original:
Гилев С.Д.
Малопараметрическое уравнение состояния меди
Физика горения и взрыва. 2018. Т.54. №4. С.107–122. DOI: 10.15372/fgv20180412 РИНЦ OpenAlex
Малопараметрическое уравнение состояния меди
Физика горения и взрыва. 2018. Т.54. №4. С.107–122. DOI: 10.15372/fgv20180412 РИНЦ OpenAlex
Identifiers:
| Web of science: | WOS:000441745400012 |
| Scopus: | 2-s2.0-85051629458 |
| Elibrary: | 35730422 |
| OpenAlex: | W2885577979 |