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Lead-free piezoelectric crystals grown by the micro-pulling down technique in the BaTiO3–CaTiO3–BaZrO3 system

hal.structure.identifieriLM - Luminescence [iLM - LUMINESCENCE]
dc.contributor.authorVEBER, Philippe
hal.structure.identifierTohoku University [Sendai]
dc.contributor.authorBARTOSIEWICZ, Karol
hal.structure.identifierCristaux massifs [NEEL - CrisMass]
dc.contributor.authorDEBRAY, Jérôme
hal.structure.identifieriLM - Luminescence [iLM - LUMINESCENCE]
dc.contributor.authorALOMBERT-GOGET, Guillaume
hal.structure.identifieriLM - Luminescence [iLM - LUMINESCENCE]
dc.contributor.authorBENAMARA, Omar
hal.structure.identifieriLM - Spectrométrie des biomolécules et agrégats [iLM - SPECTROBIO]
dc.contributor.authorMOTTO-ROS, Vincent
hal.structure.identifierThales Research and Technology [Palaiseau]
dc.contributor.authorPHAM THI, Maï
hal.structure.identifierThales Research and Technology [Palaiseau]
dc.contributor.authorBORTA-BOYON, Ana
hal.structure.identifierCristalInnov
dc.contributor.authorCABANE, Hugues
hal.structure.identifieriLM - Luminescence [iLM - LUMINESCENCE]
dc.contributor.authorLEBBOU, Kheirreddine
hal.structure.identifierGREMAN (matériaux, microélectronique, acoustique et nanotechnologies) [GREMAN]
dc.contributor.authorLEVASSORT, Franck
hal.structure.identifierTohoku University [Sendai]
dc.contributor.authorKAMADA, Kei
hal.structure.identifierTohoku University [Sendai]
dc.contributor.authorYOSHIKAWA, Akira
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAGLIONE, Mario
dc.date.issued2019
dc.description.abstractEnBaTiO3-based crystal fibres with mm-sized grains were grown by the micro-pulling down technique from the BaTiO3–CaTiO3–BaZrO3 solid solution with pulling velocities of about 6, 9 and 15 mm h−1. The natural growth direction was identified as (001)pc. For the pulling velocities of about 15 mm h−1 and 9 mm h−1, effective partition coefficients have been calculated from Castaing micro-probe measurements, and gave, respectively, 1.3 and 2 for Zr, and 0.95 and 0.9 for Ca. Laser-induced breakdown spectroscopy measurements reveal a strong inhomogeneity and variations of Zr contents while Ca contents show an opposite variation trend with a more steady distribution. Coexistence of two crystallized perovskite solid solutions is suggested. Most efficient polycrystals with mm-sized grains and 0.5 mol% Zr and 11 mol% Ca as average contents exhibit Curie temperatures higher than 113 °C, electromechanical coupling factors kt up to 41% and piezoelectric charge coefficients d33 up to 242 pC N−1 at room temperature. These values are similar to piezoelectric coefficients reported in the literature for oriented flux-grown single crystals with close compositions. Both chemical and physical results obtained in the BCTZ system make the μ-PD technique a promising way to improve the piezoelectric response of lead-free solid solution-based single crystals.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.subject.enLead-free
dc.subject.enPiezoelectrics
dc.subject.enMicro-pulling down
dc.subject.enElemental segregation
dc.title.enLead-free piezoelectric crystals grown by the micro-pulling down technique in the BaTiO3–CaTiO3–BaZrO3 system
dc.typeArticle de revue
dc.identifier.doi10.1039/c9ce00405j
dc.subject.halChimie/Matériaux
bordeaux.journalCrystEngComm
bordeaux.page3844-3853
bordeaux.volume21
bordeaux.issue25
bordeaux.peerReviewedoui
hal.identifierhal-02187642
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02187642v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=CrystEngComm&rft.date=2019&rft.volume=21&rft.issue=25&rft.spage=3844-3853&rft.epage=3844-3853&rft.au=VEBER,%20Philippe&BARTOSIEWICZ,%20Karol&DEBRAY,%20J%C3%A9r%C3%B4me&ALOMBERT-GOGET,%20Guillaume&BENAMARA,%20Omar&rft.genre=article


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