Liquid phase synthesis and sintering of Y3NbO7
| Autor: | Véronique Jubera, Lucas Viers, Rémy Boulesteix, Jean-Marc Heintz, Simon Guené-Girard, Alexandre Maitre |
|---|---|
| Přispěvatelé: | Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), IRCER - Axe 4 : céramiques sous contraintes environnementales (IRCER-AXE4), Institut de Recherche sur les CERamiques (IRCER), Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), The authors thank the CNRS, the Région Nouvelle-Aquitaine. This study was carried out with financial support of the Région Nouvelle-Aquitaine (MISTRAL program n° 2017-1R50311) in the frame of 'the Investments for the future' Program IdEx Bordeaux – LAPHIA (ANR-10-IDEX-03-02)., ANR-10-IDEX-0003,IDEX BORDEAUX,Initiative d'excellence de l'Université de Bordeaux(2010) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Ceramics
Luminescence Materials science XRD Niobium Pyrochlore chemistry.chemical_element 02 engineering and technology Crystal structure Dielectric engineering.material 01 natural sciences Fluorite [SPI.MAT]Engineering Sciences [physics]/Materials law.invention Sintering Niobate law Densification 0103 physical sciences Materials Chemistry Ionic conductivity 010302 applied physics Ionic radius Glass-ceramic Process Chemistry and Technology [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Surfaces Coatings and Films Electronic Optical and Magnetic Materials Phosphate glass Yb3+ Crystallography chemistry Y3NbO7 liquid route synthesis Ceramics and Composites engineering 0210 nano-technology Co-precipitation |
| Zdroj: | Ceramics International Ceramics International, Elsevier, 2020, 46 (16, Part B), pp.26361-26367. ⟨10.1016/j.ceramint.2020.02.190⟩ |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2020.02.190⟩ |
| Popis: | International audience; Rare earth niobates (RE3NbO7) are materials that present interesting magnetic [[1], [2], [3]], dielectric [4,5], photocatalytic [6,7], electric or ionic conductivity [[8], [9], [10], [11], [12]] and optical properties [13,14]. Such properties could be related to the crystal structures of RE3NbO7 that exists in three different crystalline forms depending on the ionic radii of the rare earth atoms [3,[15], [16], [17], [18], [19]]. Orthorombic (Pnma) and cubic fluorite pyrochlore (Fdm) structures are found for the largest cations, while the smallest radii RE (Dy, Ho, Er, Tm, Eu, Yb …) crystallize into a defect cubic fluorite structure (Fmm) [15,17]. Rare earth and niobium atoms are statistically distributed on cationic sites, as well as oxygen vacancies on anionic sites. This relative disordered structure leads to peculiar optical properties with a significant broadening of the 4f-4f transitions observed in an Eu-doped Y3NbO7 compound... |
| Databáze: | OpenAIRE |
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