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J. Phys. IV France
Volume 07, Numéro C5, November 1997
IVth European Symposium on Martensitic Transformations
Page(s) C5-13 - C5-22
IVth European Symposium on Martensitic Transformations

J. Phys. IV France 07 (1997) C5-13-C5-22

DOI: 10.1051/jp4:1997502

Recent Viewpoints on the Thermodynamics of Fluctuationless First-Order Phase Transitions

J. Ortin and J. Goicoechea

Departament ECM, Facultat de Física, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Catalonia, Spain

This work focuses on the macroscopic behaviour of a large family of first-order phase transitions, including thermoelastic martensitic transformations, which are practically insensitive to thermal fluctuations and need to be driven by an external field. The Random Field Ising Model at T = 0 is used to carry out a detailed study of the dynamics and thermodynamics of this family of fluctuationless transitions. The main difficulties expected for performing the same kind of analysis on martensitic transformations are outlined.

© EDP Sciences 1997