Calculation of concentrational dependence of equilibrium lattice parameters for the alloys Al-Cu and Al-Ag

We fit the Animalu model potential by using the crystal equation of state. We give the fitted parameters for 25 metals that have a cubic lattice. We calculate the concentrational dependence of the lattice parameters for the alloys Al-Cu and Al-Ag. The derivative da/dc in these alloys agrees well with the experimental data.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 30–34, June, 1986.