DOI: https://doi.org/10.30970/jps.08.72
THERMODYNAMICS OF THE SUBCRITICAL AREA OF THE METALLIC CERIUM
E. D. Soldatova, T. E. Galachenko
Dnipropetrovsk National University, Physical Faculty,
13 Naukova St., Dnipropetrovsk, UA-49050, Ukraine
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Journal of Physical Studies 8(1), 72–76 (2004)
DOI: https://doi.org/10.30970/jps.08.72 THERMODYNAMICS OF THE SUBCRITICAL AREA OF THE METALLIC CERIUME. D. Soldatova, T. E. Galachenko
Dnipropetrovsk National University, Physical Faculty, |
|
A two-phase one-component heterogeneous system is studied with the method of thermodynamical stability theory. Equations connecting adiabatic coefficients of stability, their increments as well as those of the thermodynamical coordinates along a phase connode with the form of the phase equilibrium curve, i. e., its inclination and curvature have been formed. These results are applied to two-phase one-component heterogeneous area of metallic cerium; it is proved that isochoric thermic capacity, adiabatic compressibility and thermic expansion along the phase connode do not depend upon volume and entropy. According to the Rainford-Edwards model, the calculation and analysis of the position of binodal and spinodal on the $γ$-$α$ phase diagram of cerium are carried out. The results are compared with experimental data.
PACS number(s): 64.60.Fr