Titre :

Compositional dependence of crystallization and chemical durability in alkali aluminoborosilicate glasses

Auteur(s) :

Deshkar, Ambar [Auteur]
Rutgers, The State University of New Jersey [New Brunswick] [RU]
Parruzot, Benjamin [Auteur]
Pacific Northwest National Laboratory [PNNL]
Youngman, Randall E. [Auteur]
Gulbiten, Ozgur [Auteur]
Vienna, John D. [Auteur]
Pacific Northwest National Laboratory [PNNL]
Goel, Ashutosh [Auteur]
Rutgers, The State University of New Jersey [New Brunswick] [RU]

Titre de la revue :

Journal of Non-Crystalline Solids

Numéro :

590

Pagination :

121694

Date de publication :

2022

ISSN :

0022-3093

Mot(s)-clé(s) :

Chemical durability
Crystallization
Glass
Nuclear waste

Discipline(s) HAL :

Planète et Univers [physics]/Sciences de la Terre

Résumé en anglais : [en]

This study aims to understand the impact of composition on crystallization and chemical durability in alkali aluminoborosilicate based model nuclear waste glasses designed in the peralkaline, metaluminous and peraluminous ...
Lire la suite >This study aims to understand the impact of composition on crystallization and chemical durability in alkali aluminoborosilicate based model nuclear waste glasses designed in the peralkaline, metaluminous and peraluminous regimes. The glasses have been thermally treated using the canister centerline cooling (CCC) schedule. The chemical durability of both parent and CCC-treated glasses has been assessed by product consistency test (PCT-B) for 120 days. The peraluminous glasses exhibit the highest dissolution rates, followed by peralkaline and metaluminous glasses. In general, increasing B2O3 content in glasses tends to suppress nepheline formation, thus, decreasing the negative impact of nepheline on durability of the final waste form. However, higher B2O3 content itself may result in detrimental impact on the durability of the final waste form. The thermal history has been shown to have a significant impact on the durability of the glasses.Lire moins >

Audience :

Non spécifiée

Vulgarisation :

Non

Collections :

• Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Équipe(s) de recherche :

Propriétés magnéto structurales des matériaux (PMSM)

Date de dépôt :

2024-02-21T17:11:52Z
2024-02-23T13:28:41Z