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Article Dans Une Revue Journal of Nuclear Materials Année : 2016

Empirical potential simulations of interstitial dislocation loops in uranium dioxide

Arno Le Prioux
  • Fonction : Auteur
Paul Fossati
Serge Maillard
  • Fonction : Auteur
Thomas Jourdan

Résumé

Stoichiometric circular shaped interstitial dislocation loop energies are calculated in stoichiometric UO2 by empirical potential simulation. The Burgers vector directions studied are < 110 > and < 111 >. The main structural properties of each type of interstitial dislocation loop are determined, including stacking fault energy. Defect energies are compared and a maximum size for stable < 111 > dislocation loops before transition to < 110 > dislocation loops is given. A model of dislocation loop energy based on elasticity theory is then fitted on the basis of these simulation results. (C) 2016 Elsevier B. V. All rights reserved.
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Dates et versions

hal-01435100 , version 1 (13-01-2017)

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Arno Le Prioux, Paul Fossati, Serge Maillard, Thomas Jourdan, Philippe Maugis. Empirical potential simulations of interstitial dislocation loops in uranium dioxide. Journal of Nuclear Materials, 2016, 479, pp.576-584. ⟨10.1016/j.jnucmat.2016.07.046⟩. ⟨hal-01435100⟩
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