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Dielectric ferroelectric and piezoelectric properties of BaTi0.975(Zn1/3Nb2/3)0.025O3 ceramic

hal.structure.identifierLaboratoire de sciences des matériaux et de l’environnement [Université de Sfax] [SME]
dc.contributor.authorKHEMAKHEM, L.
hal.structure.identifierLaboratoire des Matériaux Ferroélectriques
dc.contributor.authorMAALEJ, A.
hal.structure.identifierLaboratoire de sciences des matériaux et de l’environnement [Université de Sfax] [SME]
dc.contributor.authorKABADOU, A.
hal.structure.identifierLaboratoire des Matériaux Ferroélectriques
dc.contributor.authorBEN SALAH, A.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSIMON, Annie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAGLIONE, Mario
dc.date.issued2008
dc.identifier.issn0925-8388
dc.description.abstractEnThe present work concerns the preparation, dielectric, ferroelectric and piezoelectric characterizations of the lead-free ceramic composition BaTi0.975(Zn1/3Nb2/3)0.025O3. This lead-free composition could be of great interest for environment friendly applications (dielectric for capacitors, actuators, etc.). This ceramic was prepared using the conventional mixed-oxide technique. The temperature dependence of the dielectric constant of this composition BaTi0.975(Zn1/3Nb2/3)0.025O3 was investigated. The rhombohedral–orthorhombic and orthorhombic–quadratic perovskite transitions are characterized by two weak peaks but the tetragonal–cubic ferroelectric–paraelectric one is characterized by a pronounced peak with weak frequency dispersion. Excellent dielectric properties have been obtained for this composition. A ε′r value at 1 kHz reaches of about as 9700 was observed. The polarization versus electric field hysteresis measurements showed a well-defined hysteresis loop with a remanent polarization of 1.05 μC/cm2 with a coercive field of 0.85 kV/cm at room temperature. BaTi0.975(Zn1/3Nb2/3)0.025O3 exhibits an important value of d31 coefficient which reaches as high as 90 pC N−1. From these results, we can consider this composition is of great interest for applications.
dc.language.isoen
dc.publisherElsevier
dc.title.enDielectric ferroelectric and piezoelectric properties of BaTi0.975(Zn1/3Nb2/3)0.025O3 ceramic
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jallcom.2007.02.091
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Alloys and Compounds
bordeaux.page441-445
bordeaux.volume452
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-00262076
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00262076v1
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