Uranium carbide oxidation from 873 K to 1173 K
Langue
en
Article de revue
Ce document a été publié dans
Corrosion Science. 2019-05, vol. 151, p. 44-56
Elsevier
Résumé en anglais
Oxidation of UC was studied from 873 to 1173 K in air and in 10 Pa oxygen using a High Temperature Environmental SEM (HT-ESEM). Conversion to U3O8 improved when using 873 K as the oxide product was a fine powder. At higher ...Lire la suite >
Oxidation of UC was studied from 873 to 1173 K in air and in 10 Pa oxygen using a High Temperature Environmental SEM (HT-ESEM). Conversion to U3O8 improved when using 873 K as the oxide product was a fine powder. At higher temperatures (973 K to 1173 K) oxidation slowed due to a densification process with formation of coarse fragments. The oxide fragmentation at 973 K and 1073 K and oxide pulverisation at 873 K were observed in situ in a HT-ESEM. Cracking induced fragmentation and pulverisation was linked to stresses generated from the volumetric transformation from UC to U3O8.< Réduire
Mots clés en anglais
Oxidation
Uranium oxide
Uranium carbide
SEM
HT-ESEM
TEM
Origine
Importé de halUnités de recherche