Number:

Mech 69/92

Author(s):

BEREZOVSKI, A.A., ROSENBLUM, V.I.

Title:

A new approach to thermodynamic analysis of phase transitions. 18 p., fig.

Language:

English Abstract. The paper proposes a new approach to thermodynamic analysis of phase transitions based on the thermodynamics of interacting systems. The use of the concept of interaction permits to represent a phase transition as a multi-stage process. At each stage of this process, the pure substance displays the properties of a binary system. The proposed thermodynamic model determines the areas of the interphase and cluster solutions, and the region of heterogeneous separation with no additional measurements carried out.The thermodynamic theory worked out comprises not only a closed set of equations for predicting the properties of the pure substance at each stage of phase transition, but also conditions of transition from one stage to another.