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Phase stabilisation, thermal expansion and ionic conductivity of high content rare earth oxide (Lu2O3, Y2O3 and Gd2O3) stabilised cubic hafnia

hal.structure.identifierDMAS, ONERA, Université Paris Saclay [Châtillon]
hal.structure.identifierLaboratoire Interdisciplinaire Carnot de Bourgogne [ICB]
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorSÉVIN, Louise
hal.structure.identifierDMAS, ONERA, Université Paris Saclay [Châtillon]
hal.structure.identifierLaboratoire Interdisciplinaire Carnot de Bourgogne [ICB]
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorAUDOUARD, Lisa
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorRAZAFINDRAMANANA, Volatiana
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAUVY, Fabrice
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGALZIN, Leo
hal.structure.identifierDMAS, ONERA, Université Paris Saclay [Châtillon]
dc.contributor.authorJUSTIN, Jean-François
hal.structure.identifierLaboratoire Interdisciplinaire Carnot de Bourgogne [ICB]
dc.contributor.authorBERTRAND, Pierre
hal.structure.identifierLaboratoire Interdisciplinaire Carnot de Bourgogne [ICB]
dc.contributor.authorLANGLADE, Cécile
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorMATTHIEU, Garcia
hal.structure.identifierDMAS, ONERA, Université Paris Saclay [Châtillon]
dc.contributor.authorJULIAN-JANKOWIAK, Aurélie
dc.date.issued2023
dc.identifier.issn0955-2219
dc.description.abstractEnFor satellite propulsion, new material are developed to sustain harsh thermal and environmental conditions in the combustion chambers induced by the development of new “green” propellants less toxic than currently used hydrazine. In the present study, hafnia-based materials with different amounts and natures of stabilisers (Lu2O3, Y2O3 and Gd2O3) have been chosen for the ceramic part of the system. Microstructures, Thermal Expansion Coefficients (373–1673 K) and ionic conductivities (600–1273 K) of synthesised fully stabilised fluorite phases have been investigated. Lattice parameters have been determined and an abacus has been proposed as a function of the amount of RE2O3 and the ionic radius of the Rare Earth cation (RE3+). Moreover, it has been observed a TECs decrease from 14 to 40 mol% of RE2O3 and few changes in the ionic conductivity above 33 mol% of RE2O3. Finally, addition of Lu2O3 allows to reach the lowest TEC and ionic conductivity.
dc.language.isoen
dc.publisherElsevier
dc.subject.enFluorite
dc.subject.enIonic conductivity
dc.subject.enThermal Expansion Coefficient (TEC)
dc.subject.enEnvironmental Barrier Coating (EBC)
dc.subject.enHfO2
dc.subject.enRare Earth Oxide
dc.title.enPhase stabilisation, thermal expansion and ionic conductivity of high content rare earth oxide (Lu2O3, Y2O3 and Gd2O3) stabilised cubic hafnia
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jeurceramsoc.2023.03.006
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of the European Ceramic Society
bordeaux.page4153-4166
bordeaux.volume43
bordeaux.issue9
bordeaux.peerReviewedoui
hal.identifierhal-04064798
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04064798v1
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