Thermodynamic and experimental approach of the effect of Si on the sintering of Y3NbO7 - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of the European Ceramic Society Année : 2021

Thermodynamic and experimental approach of the effect of Si on the sintering of Y3NbO7

Résumé

The effect of silicon on the natural sintering of Y3NbO7 powders is studied. Characterizations shows that Si increases densification rate and grain growth but it also leads to the apparition of a secondary silicate phase. The silicate precipitation results from the segregation of silicon favored by matter transport through a liquid phase. The distribution of the secondary phase have been studied by electronic microscopy and mapped by micro-luminescence. Thermodynamic calculations of Gibbs energy of the different phase as well as binary and ternary phase diagrams have been conducted to support interpretation of the sintering experimental results.

Domaines

Matériaux
Fichier principal
Vignette du fichier
2021-068.pdf (2.01 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03224339 , version 1 (11-05-2021)

Identifiants

Citer

Simon Guené-Girard, Veronique Jubera, François Weill, Jérôme Roger, Alexandre Fargues, et al.. Thermodynamic and experimental approach of the effect of Si on the sintering of Y3NbO7. Journal of the European Ceramic Society, 2021, 41 (10), pp.5316-5323. ⟨10.1016/j.jeurceramsoc.2021.04.032⟩. ⟨hal-03224339⟩
60 Consultations
37 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More