Oxygen permeation in bismuth-based materials. Part I: Sintering and oxygen permeation fluxes
| Autor: | Marlu César Steil, M. Malys, Elisabeth Bordes-Richard, Guy Nowogrocki, Rose-Noëlle Vannier, Axel Löfberg, Edouard Capoen, J.C. Boivin, Gaetan Mairesse, Caroline Pirovano |
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| Přispěvatelé: | Laboratoire de cristallochimie et physicochimie du solide (LCPS), Université de Lille, Sciences et Technologies-Centre National de la Recherche Scientifique (CNRS), Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Centrale Lille Institut (CLIL)-Université d'Artois (UA)-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Lille, Laboratoire de catalyse de Lille - UMR 8010 (LCL), Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS), Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2006 |
| Předmět: |
Materials science
020209 energy Inorganic chemistry chemistry.chemical_element Sintering 02 engineering and technology BIMEVOX Fluorite Oxygen bismuth calcium oxide Bismuth Oxygen permeability bismuth erbium oxide 0202 electrical engineering electronic engineering information engineering General Materials Science Ceramic [CHIM.CATA]Chemical Sciences/Catalysis [CHIM.MATE]Chemical Sciences/Material chemistry General Chemistry Permeation 021001 nanoscience & nanotechnology Condensed Matter Physics oxygen permeation chemistry Permeability (electromagnetism) visual_art visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Solid State Ionics Solid State Ionics, Elsevier, 2006, 177, pp.483-488. ⟨10.1016/j.ssi.2005.12.015⟩ Solid State Ionics, 2006, 177, pp.483-488. ⟨10.1016/j.ssi.2005.12.015⟩ |
| ISSN: | 0167-2738 |
| DOI: | 10.1016/j.ssi.2005.12.015 |
| Popis: | Oxygen permeation measurements were performed on two layered bismuth based oxide ceramics: a rhombohedral phase belonging to the Bi2O3-CaO system, (Bi2O3)0.73- (CaO)0.27 (BICAO) and a BICOVOX phase. Oxygen permeability for these systems was compared to permeability of the cubic fluorite type structure with composition (Bi2O3)0.75(Er2O3)0.25 (BE25). Low oxygen permeability was observed for the pure ceramic. As for BE25, permeability was considerably increased if 40 vol% of silver was added to BICAO. In contrast, permeability was not improved by addition of gold to BICOVOX. For this latter phase, the oxygen molecular exchange at the surface is clearly the limiting step in the oxygen transfer. |
| Databáze: | OpenAIRE |
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