Titre :

Effect of SrO content on the structure and properties of sodium-strontium metaphosphate glasses

Auteur(s) :

Atef Cherbib, Mohamed [Auteur]
Khattech, Ismail [Auteur]
Montagne, Lionel [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Revel, Bertrand [Auteur]
Jemal, Mohamed [Auteur]

Titre de la revue :

Journal of Physics and Chemistry of Solids

Numéro :

102

Pagination :

62-68

Date de publication :

2017-03

Discipline(s) HAL :

Chimie/Chimie inorganique

Résumé en anglais : [en]

In order to understand the influence of SrO content on the structure, physical properties and thermochemistry of sodium-strontium metaphosphate glasses, a series of glasses having the formula (50-x) Na2O-x SrO-50 P2O5, ...
Lire la suite >In order to understand the influence of SrO content on the structure, physical properties and thermochemistry of sodium-strontium metaphosphate glasses, a series of glasses having the formula (50-x) Na2O-x SrO-50 P2O5, with x ranging from 0% to 50% molar, have been prepared by melt quenching technique. Fourier Transform Infrared Spectroscopy and 31P Magic Angle Spinning Nuclear Magnetic Resonance show the dominance of the metaphosphate species along the studied composition range, while increasing SrO led to the increase of the density, glass transition and crystallization temperatures and also the chemical durability, suggesting an increase of the reticulation of the phosphate network. The microcalorimetric dissolution in acid solution shows the decrease of the heat of dissolution as the SrO amount rises. Thermodynamic interpretations point out the occurrence of two composition domains, each one corresponding probably to the predominance of particular interactions.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

RMN et matériaux inorganiques (RM2I)

Date de dépôt :

2019-09-25T14:05:49Z