%0 Journal Article %T Predicting non-equilibrium patterns beyond thermodynamic concepts: application to radiation induced microstructures. %+ Département de Modélisation des Systèmes et Structures (DM2S) %+ Département d'Etudes des Combustibles (DEC) %+ Laboratoire d'Analyse Microstructurale des Matériaux (LA2M) %+ Département des Matériaux pour le Nucléaire (DMN) %A Luneville, Laurence %A Garcia, Philippe %A Simeone, David %< avec comité de lecture %@ 0031-9007 %J Physical Review Letters %I American Physical Society %V 124 %P 085701 %8 2020 %D 2020 %R 10.1103/PhysRevLett.124.085701 %Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles %X In this work, we derive an analytical model to predict the appearance of all possible radiation-induced steady states and their associated microstructures in immiscible A$_{\bar c}$B$_{1- \bar c}$alloys, an example of a non equilibrium dynamical system. This model is assessed against numerical simulations and experimental results which show that different microstructures characterized by the patterning of A-rich precipitates can emerge under irradiation. We demonstrate that the steady-state microstructureis governed by irradiation conditions but also by the average initial concentration of the alloy $\bar c$. Such a dependence offers new leverage for tailoring materials with specific microstructures overcoming limitations imposed by the equilibrium thermodynamic phase diagram. %G English %2 https://cea.hal.science/cea-03719957/document %2 https://cea.hal.science/cea-03719957/file/PRL-PF-2020.pdf %L cea-03719957 %U https://cea.hal.science/cea-03719957 %~ CEA %~ DSV %~ DEN %~ CEA-UPSAY %~ UNIV-PARIS-SACLAY %~ CEA-DRF %~ DEN-CAD %~ CEA-CAD %~ DEN-SACLAY %~ UNIVERSITE-PARIS-SACLAY %~ GS-ENGINEERING %~ GS-PHYSIQUE %~ MAP-CEA