How polarons can enhance UO2 irradiation resistance?

Lionel Desgranges (1) , Gianguido Baldinozzi (2, 3) , Pascal Ruello (4) , Claude Petot (2)

1 LM2C - Laboratoire de Modélisation Multi-échelles des Combustibles
2 SPMS - Laboratoire Structures, Propriétés et Modélisation des solides
3 LA2M - Laboratoire d'Analyse Microstructurale des Matériaux
4 IRIMMFUM - Institut de recherche en ingénierie moléculaire et matériaux fonctionnels de l'université du Maine

UO2 has a specific behaviour at high temperature related to a high concentration of charged defects, polarons, affecting its thermodynamic properties. We discuss how polarons can improve the radiation resistance of UO2.

Mots clés: UO2; Irradiation; Polaron

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Lionel Desgranges, Gianguido Baldinozzi, Pascal Ruello, Claude Petot. How polarons can enhance UO2 irradiation resistance?. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2012, 227, pp.109-111. ⟨10.1016/j.nimb.2011.12.046⟩. ⟨hal-00678234⟩