Thermal behavior of waterglass: foaming ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Thermal behavior of waterglass: foaming and xerogel-to-glass evolution
Auteur(s) :
Mohsin, Hamza [Auteur]
Laboratoire de physique de la matière condensée [LPMC]
Surface du Verre et Interfaces [SVI]
Maron, Sébastien [Auteur]
Laboratoire de physique de la matière condensée [LPMC]
Maurin, Isabelle [Auteur]
Laboratoire de Physique de la Matière Condensée [LPMC]
Burov, Ekaterina [Auteur]
Surface du Verre et Interfaces [SVI]
Tricot, Grégory [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Devys, Lucie [Auteur]
Saint-Gobain Recherche [SGR]
Gouillart, Emmanuelle [Auteur]
Surface du Verre et Interfaces [SVI]
Gacoin, Thierry [Auteur]
Laboratoire de physique de la matière condensée [LPMC]
Laboratoire de physique de la matière condensée [LPMC]
Surface du Verre et Interfaces [SVI]
Maron, Sébastien [Auteur]
Laboratoire de physique de la matière condensée [LPMC]
Maurin, Isabelle [Auteur]
Laboratoire de Physique de la Matière Condensée [LPMC]
Burov, Ekaterina [Auteur]
Surface du Verre et Interfaces [SVI]
Tricot, Grégory [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Devys, Lucie [Auteur]
Saint-Gobain Recherche [SGR]
Gouillart, Emmanuelle [Auteur]
Surface du Verre et Interfaces [SVI]
Gacoin, Thierry [Auteur]
Laboratoire de physique de la matière condensée [LPMC]
Titre de la revue :
Journal of Non-Crystalline Solids
Numéro :
566
Date de publication :
2021
Discipline(s) HAL :
Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
Résumé en anglais : [en]
Structural properties of aqueous Na-silicates at both room and high temperature (below 500°C) have been investigated to better understand the microscopic evolution of structure and the macroscopic phenomenon of foaming. ...
Lire la suite >Structural properties of aqueous Na-silicates at both room and high temperature (below 500°C) have been investigated to better understand the microscopic evolution of structure and the macroscopic phenomenon of foaming. NMR spectroscopy has provided a direct quantification of structural units defined as Qn. Solid-state NMR along with Raman spectroscopy has indicated the extent of local structural reorganization on heating the silicates. Heating an aqueous Na-silicate leads to structural changes due to the removal of water, where the quantity of leftover water in the system obeys an Arrhenian evolution with an activation energy of 30 kJ.mol−1. TGA, NMR and Raman measurements suggest that the structure becomes similar to the one of hydrated silicate glasses studied in geochemistry. Increasing the Na concentration results in a larger quantity of water retained after a pre-drying treatment, which correlates with a lower softening temperature of the material and is, macroscopically, related to foaming of the silicate.Lire moins >
Lire la suite >Structural properties of aqueous Na-silicates at both room and high temperature (below 500°C) have been investigated to better understand the microscopic evolution of structure and the macroscopic phenomenon of foaming. NMR spectroscopy has provided a direct quantification of structural units defined as Qn. Solid-state NMR along with Raman spectroscopy has indicated the extent of local structural reorganization on heating the silicates. Heating an aqueous Na-silicate leads to structural changes due to the removal of water, where the quantity of leftover water in the system obeys an Arrhenian evolution with an activation energy of 30 kJ.mol−1. TGA, NMR and Raman measurements suggest that the structure becomes similar to the one of hydrated silicate glasses studied in geochemistry. Increasing the Na concentration results in a larger quantity of water retained after a pre-drying treatment, which correlates with a lower softening temperature of the material and is, macroscopically, related to foaming of the silicate.Lire moins >
Langue :
Anglais
Audience :
Non spécifiée
Vulgarisation :
Non
Établissement(s) :
ENSCL
CNRS
Université de Lille
CNRS
Université de Lille
Collections :
Équipe(s) de recherche :
Propriétés magnéto structurales des matériaux (PMSM)
Date de dépôt :
2024-02-21T17:11:54Z
2024-02-27T09:00:15Z
2024-02-27T09:00:15Z