Pérez Reche, Francisco JoséVives i Santa-Eulàlia, EduardMañosa, LluísPlanes Vila, Antoni2010-06-092010-06-0920010031-9007https://hdl.handle.net/2445/12803The significance of thermal fluctuations in nucleation in structural first-order phase transitions has been examined. The prototypical case of martensitic transitions has been experimentally investigated by means of acoustic emission techniques. We propose a model based on the mean first-passage time to account for the experimental observations. Our study provides a unified framework to establish the conditions for isothermal and athermal transitions to be observed.4 p.application/pdfeng(c) American Physical Society, 2001Equacions d'estatCiència dels materialsTransformacions de fase (Física estadística)Equations of stateMaterials sciencePhase transformations (Statistical physics)info:eu-repo/semantics/article186005info:eu-repo/semantics/openAccess