[en] Short note

No abstract available

[en] γ reversible α transition is studied in metallic cerium from the point of view of the theory of critical indices. Model values of critical indices have been calculated on the basis of the theory of ''pseudobinary solutions''. Established is the correlation of model and experimental results of critical indices along the equilibrium curve of γ- and α-phases of metallic cerium. A conclusion is made that γ reversible α transition in cerium is a transition of critical type, and cerium has a critical point on phase diagram, similar to the critical point of the liquid-steam system

No abstract available

No abstract available

[en] A simple cerium model is considered which permits obtaining its state equation in the P-V-T variables. It follows from the equation that the equilibrium line on the P-T diagram ends at the critical point. The behaviour of thermodynamic values near the critical point is investigated, the critical indices α=0, β=1/2, γ=1, δ=3 are determined. A comparison with the experimental is carried out

[en] Properties of cerium in the vicinity of the critical point in terms of thermodynamics of a single-component system are considered. The thermal equation of the state in P, V, T variables, from which it follows the existence of phase transition of the first generation. The equilibrium line results in the critical point. The behaviour of thermodynamic values in the vicinity of the critical point is analysed, critical factors: a=0, γ=1/2, δ=3, are calculated

[en] Behaviour of cerium thermodynamic properties at the pressures and temperatures above the critical point is investigated. Stability of thermodynamic equilibrium in the above-critical region is considered on the base of the theory of pseudobinary solid solutions and experimental data. The line of continuous type phase transitions (quasispinodal) is shown to be the continuation of the γ-α phase equilibrium line. Correlation between the critical parameters on the quasispinodal is obtained