Titre :

Morphological and microstructural characterizations of the fresh fuel plates for the SEMPER FIDELIS in-pile test

Auteur(s) :

Khair, Mira [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Housaer, François [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Hibert, Nicolas [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Allenou, Jérôme [Auteur]
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
béclin, franck [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Touzin, Matthieu [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Leenaers, Ann [Auteur]
Palancher, Hervé [Auteur]
Stepnik, Bertrand [Auteur]
Tougait, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Housaer, François [Auteur]

Titre de la revue :

Journal of Nuclear Materials

Nom court de la revue :

Journal of Nuclear Materials

Numéro :

563

Pagination :

153656

Éditeur :

Elsevier BV

Date de publication :

2022-03

ISSN :

0022-3115

Mot(s)-clé(s) en anglais :

Low-enriched-uranium (LEU)
UMo dispersion fuel
ZrN
Si
Mo coating
Interface layer
SEMPER FIDELIS

Discipline(s) HAL :

Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Chimie/Matériaux

Résumé en anglais : [en]

The UMo/Al dispersion fuel in plate form is considered for the conversion of high-performance research reactors in Europe. In the framework of the UMo fuel qualification program, the adequate margin of safety performance ...
Lire la suite >The UMo/Al dispersion fuel in plate form is considered for the conversion of high-performance research reactors in Europe. In the framework of the UMo fuel qualification program, the adequate margin of safety performance by considering several technological solutions associated with the fabrication parameters, such as heat-treatment of the UMo particles, coating with a diffusion barrier material and powder size distribution as some examples. All these parameters, along with the effect of the hot-rolling process were evaluated by means of image processing and detailed microstructural characterizations for fresh samples i.e. prior to irradiation tests. Principle macroscopic features of powder batches include the size and shape distributions and coating surface examinations. Microscale investigations explored both the coating and kernel microstructures as well as the interface layer between them. Finally, nanoscale analyses examined the UMo–coating interface. The extensive stresses associated with the hot-rolling process have a significant impact on the deformation of the UMo kernels and the degradation of the coated film. The UMo kernels mostly lost their spherical shape for faceted and elongated shapes whereas three types of film degradations were identified including cracks, chippings and delamination.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Métallurgie Physique et Génie des Matériaux

Date de dépôt :

2022-03-16T12:52:41Z
2022-03-16T13:48:32Z
2022-03-21T08:19:27Z