Titre :

Yttria substitution effect of tantalate aluminosilicate glasses with ultra-high Young's modulus

Auteur(s) :

Hayashi, K. [Auteur]
Ehime University [Matsuyama, Japon]
Nishizaki, H. [Auteur]
Ehime University [Matsuyama, Japon]
Mitsui, K. [Auteur]
Ehime University [Matsuyama, Japon]
Tricot, Gregory [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Saitoh, A. [Auteur]
Ehime University [Matsuyama, Japon]

Titre de la revue :

J. Am. Ceram. Soc.

Nom court de la revue :

J. Am. Ceram. Soc.

Numéro :

107

Pagination :

6774-6782

Date de publication :

2024-07-09

ISSN :

0002-7820

Mot(s)-clé(s) en anglais :

aluminosilicates
crystals/crystallization
mechanical properties
nuclear magnetic resonance
thermal expansion

Discipline(s) HAL :

Chimie/Chimie théorique et/ou physique

Résumé en anglais : [en]

We report novel oxide glasses that are compatible with ultra-high Young's modulus (∼150 GPa) and a small coefficient of thermal expansion (∼5.0 ppm/K). These glasses were prepared using a conventional melt-quenching ...
Lire la suite >We report novel oxide glasses that are compatible with ultra-high Young's modulus (∼150 GPa) and a small coefficient of thermal expansion (∼5.0 ppm/K). These glasses were prepared using a conventional melt-quenching technique. The viscosity–temperature relation provides the reshaping temperature for the stiff and less dilated oxide glasses. The origin of the ultra-high Young's modulus is the inclusion of Y2O3 as well as five- and six-coordinated alumina oxide and Ta2O5, which has a large ionic packing ratio due to higher oxygen coordination numbers. On the other hand, the small thermal expansion coefficient originates from including Ta2O5 and SiO2 with large dissociation energy due to strong bonds.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS

Collections :

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

Date de dépôt :

2024-07-11T21:01:57Z
2024-08-23T11:13:09Z