Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Self-irradiation effects in dense and tailored porosity U1−yAmyO2−x (y = 0.10; 0.15) compounds

Abstract : Dense and tailored porosity U1−yAmyO2−x (y = 0.10; 0.15) pellets were fabricated to determine the influence of the microstructure on the self-irradiation effect at room temperature due to Am α decay. A first positron annihilation lifetime spectroscopy (PALS) approach showed the presence of vacancy type defects due to the cumulative decay dose. When He fills these vacancies, a void growth and swelling can occur. In addition, accurate diameter measurements with time were performed showing that a macroscopic swelling of 1% could be attained for the high density material. The stage value seems to depend on both type and porosity level. Swelling laws describing the diameter variation have been determined.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-unilim.archives-ouvertes.fr/hal-00632206
Contributeur : Claire Douady <>
Soumis le : jeudi 13 octobre 2011 - 16:58:20
Dernière modification le : jeudi 30 juillet 2020 - 03:13:21

Identifiants

Citation

Damien Prieur, Aurélien Jankowiak, D. Roudil, S. Dubois, C. Leorier, et al.. Self-irradiation effects in dense and tailored porosity U1−yAmyO2−x (y = 0.10; 0.15) compounds. Journal of Nuclear Materials, Elsevier, 2011, 411 (1-3), pp.15-19. ⟨10.1016/j.jnucmat.2010.12.314⟩. ⟨hal-00632206⟩

Partager

Métriques

Consultations de la notice

361