Abstract: A method of constructing the curve of cold compression and the isotherm for the metal based on the generalized equation for the Grüneisen coefficient is considered. In contrast to available approaches, it is proposed to take into account the change in the character of interaction of atoms in the crystal due to compression. For this purpose, the dimensionless parameter t in the generalized equation is considered as a function of compression. The experimental data on metal compressibility testify that the parameter t increases with an increase in density. Free parameters of the model for aluminum are found. The proposed approach allows the aluminum isotherm to be described more accurately and in a wider range of density. For the cold compression curve, the working region of the model increases almost by an order of magnitude in terms of density and by more than two orders of magnitude in terms of pressure (as compared to the model where the parameter t is assumed to be constant).

Cite: Gilev S.D.
ISOTHERM OF ALUMINUM BASED ON THE GENERALIZED EQUATION FOR THE GRüNEISEN COEFFICIENT
Combustion, Explosion and Shock Waves. 2022. V.58. N2. P.226-233. DOI: 10.1134/S0010508222020125 WOS Scopus РИНЦ OpenAlex

Original: Гилев С.Д.
Изотерма алюминия, построенная на основе обобщенного уравнения для коэффициента Грюнайзена
Физика горения и взрыва. 2022. Т.58. №2. С.109-117. DOI: 10.15372/FGV20220212 РИНЦ OpenAlex

Identifiers:

Web of science:	WOS:000809375400012
Scopus:	2-s2.0-85131820851
Elibrary:	48718731
OpenAlex:	W4281885033

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OpenAlex	1
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