Title :

Compositional dependence of crystallization and chemical durability in alkali aluminoborosilicate glasses

Author(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]

Journal title :

Journal of Non-Crystalline Solids

Volume number :

590

Pages :

121694

Publication date :

2022

ISSN :

0022-3093

Keyword(s) :

Chemical durability
Crystallization
Glass
Nuclear waste

HAL domain(s) :

Planète et Univers [physics]/Sciences de la Terre

English abstract : [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 ...
Show more >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.Show less >

Audience :

Non spécifiée

Popular science :

Non

Collections :

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

Research team(s) :

Propriétés magnéto structurales des matériaux (PMSM)

Submission date :

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