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Relaxor or classical ferroelectric behavior in ceramics with composition Sr2-xA1+xNb5O15-xFx (A = Na, K)

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierLaboratoire de Chimie du Solide Minéral
dc.contributor.authorEL ALAOUI-BELGHITI, H.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVON DER MÜHLL, Régnault
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSIMON, Annie
hal.structure.identifierLaboratoire de Chimie du Solide Minéral
dc.contributor.authorELAATMANI, M.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorRAVEZ, Jean
dc.date.issued2002
dc.identifier.issn0167-577X
dc.description.abstractEnBy partial cationic and anionic substitutions in NaNbO3-SrNb2O6 and KNbO3-SrNb2O6 systems, two solid solutions have been obtained: Sr2−xNa1+xNb5O15−xFx and Sr2−xK1+xNb5O15−xFx. They crystallize in the tetragonal tungsten bronze (TTB) type structure, which is related to that of the perovskite. The replacement of oxygen by fluorine causes a decrease of the Curie temperature. A weak F-O substitution rate increases the compactness, which leads to higher dielectric constant with good piezoelectric and pyroelectric characteristics. A relatively higher F-O substitution rate induces aferroelectricrelaxorbehavior. Such relaxorferroelectricceramics with lead-free compositions can be of great interest for environment-friendly applications.
dc.language.isoen
dc.publisherElsevier
dc.subject.enDisorder
dc.subject.enRelaxor
dc.subject.enTTB
dc.subject.enCeramics
dc.title.enRelaxor or classical ferroelectric behavior in ceramics with composition Sr2-xA1+xNb5O15-xFx (A = Na, K)
dc.typeArticle de revue
dc.identifier.doi10.1016/S0167-577X(01)00636-X
dc.subject.halChimie/Matériaux
bordeaux.journalMaterials Letters
bordeaux.page138-144
bordeaux.volume55
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-00716811
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00716811v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Materials%20Letters&rft.date=2002&rft.volume=55&rft.issue=3&rft.spage=138-144&rft.epage=138-144&rft.eissn=0167-577X&rft.issn=0167-577X&rft.au=EL%20ALAOUI-BELGHITI,%20H.&VON%20DER%20M%C3%9CHLL,%20R%C3%A9gnault&SIMON,%20Annie&ELAATMANI,%20M.&RAVEZ,%20Jean&rft.genre=article


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