Thermodynamics of the activated state of materials

Anna G. Knyazeva, S. G. Psakhie

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The thermodynamics of irreversible processes is extended to deformable materials whose state and behavior under nonequilibrium conditions are determined by the value and evolution of the additional parameter - the activation parameter. General thermodynamic relations are presented. The concept of the time of existence of a nonequilibrium state is introduced, and the phase coexistence conditions are generalized taking into account the properties of the interface. Methods are described to generalize the relations for irreversible flows, thermodynamic forces, and the equations of state.

Original languageEnglish
Pages (from-to)118-126
Number of pages9
JournalJournal of Applied Mechanics and Technical Physics
Issue number1
Publication statusPublished - 2009


  • Activation parameter
  • Irreversible processes
  • Nonequilibrium conditions
  • Thermodynamics

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Condensed Matter Physics

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