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Enhanced dielectric and electrocaloric properties in lead-free rod-like BCZT ceramics

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab ]
dc.contributor.authorHANANI, Zouhair
hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab ]
dc.contributor.authorMERSELMIZ, Soukaina
hal.structure.identifierInstitut Jean Lamour [IJL]
dc.contributor.authorDANINE, Abdelaadim
hal.structure.identifierInstitut Jean Lamour [IJL]
dc.contributor.authorSTEIN, Nicolas
hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab ]
dc.contributor.authorMEZZANE, Daoud
hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab ]
dc.contributor.authorAMJOUD, M’barek
hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab ]
hal.structure.identifierUniversité Mohammed VI Polytechnique = Mohammed VI Polytechnic University [Ben Guerir] [UM6P]
dc.contributor.authorLAHCINI, Mohammed
hal.structure.identifierLaboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
dc.contributor.authorGAGOU, Yaovi
hal.structure.identifierJozef Stefan Institute [Ljubljana] [IJS]
dc.contributor.authorSPREITZER, Matjaz
hal.structure.identifierJozef Stefan Institute [Ljubljana] [IJS]
dc.contributor.authorVENGUST, Damjan
hal.structure.identifierJozef Stefan Institute [Ljubljana] [IJS]
dc.contributor.authorKUTNJAK, Zdravko
hal.structure.identifierLaboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
dc.contributor.authorEL MARSSI, Mimoun
hal.structure.identifierPhysics Faculty
hal.structure.identifierLaboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
dc.contributor.authorLUK'YANCHUK, Igor A.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGOUNÉ, Mohamed
dc.date.issued2020-04
dc.description.abstractEnBa0.85Ca0.15Zr0.10Ti0.90O3 (BCZT) lead-free ceramics demonstrated excellent dielectric, ferroelectric, and piezoelectric properties at the morphotropic phase boundary (MPB). So far, to study the effect of morphological changes on dielectric and ferroelectric properties in lead-free BCZT ceramics, researchers have mostly focused on the influence of spherical grain shape change. In this study, BCZT ceramics with rod-like grains and aspect ratio of about 10 were synthesized by surfactant-assisted solvothermal route. X-ray diffraction (XRD) and selected area electron diffraction (SAED) performed at room temperature confirm the crystallization of pure perovskite with tetragonal symmetry. Scanning electron microscopy (SEM) image showed that BCZT ceramics have kept the 1D rod-like grains with an average aspect ratio of about 4. Rod-like BCZT ceramics exhibit enhanced dielectric ferroelectric (ɛr = 11,906, tanδ = 0.014, Pr = 6.01 μgC/cm2, and Ec = 2.46 kV/cm), and electrocaloric properties (ΔT = 0.492 K and gZ = 0.289 (K·mm)/kV at 17 kV/cm) with respect to spherical BCZT ceramics. Therefore, rod-like BCZT lead-free ceramics have good potential to be used in solid-state refrigeration technology.
dc.language.isoen
dc.title.enEnhanced dielectric and electrocaloric properties in lead-free rod-like BCZT ceramics
dc.typeArticle de revue
dc.identifier.doi10.1007/s40145-020-0361-1
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Advanced Ceramics
bordeaux.page210-219
bordeaux.volume9
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02635246
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02635246v1
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