Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region

Autores
Machado, Rodrigo; dos Santos, Valdeci B.; Ochoa, Diego; Cerdeiras, Elena; Mestres, Lourdes; García, José E.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A systematic study of the functional properties of the (1-x)(Bi0.5Na0.5)TiO3–xBaTiO3(BNT-xBT) piezoceramic system for 0.05 ≤ x ≤ 0.07 is performed. The samples are obtained through the conventional solid-state route. The expected microstructure for these compounds, with no significant dependence on the composition, is verified by field-emission scanning electron microscopy. The morphotropic phase boundary (MPB) is detected for x = 0.06–0.07 by means of the Rietveld analysis of X-ray diffraction data. The dielectric spectra show a frequency-independent, completely diffuse phase transition with a composition-dependent diffusivity coefficient. The depolarization temperature is effectively evaluated from pyroelectric measurements, the value being strongly dependent on the composition. A significant contribution of the extrinsic effect to elastic, dielectric and electromechanical properties is revealed for MPB BNT-xBT. The Bi3+substitution by Ba2+leads to the formation of A-site vacancies, which give rise to the enhancement of domain wall motion, as occurs in other perovskite-type piezoelectrics. Good functional properties are achieved for x = 0.07 (d33 = 180 pC/N), which are similar or even better than those obtained by complex synthesis routes. This system exhibits a remarkable stability in the permittivity that has hitherto not been reported. This fact may open the way for BNT-BT compositions to be used in specific applications in which lead-free piezoceramics have previously been employed with little success, e.g. in high power devices.
Fil: Machado, Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: dos Santos, Valdeci B.. Universidad Politécnica de Catalunya; España. Universidade Federal Do Piaui; Brasil
Fil: Ochoa, Diego. Universidad Politécnica de Catalunya; España
Fil: Cerdeiras, Elena. Universidad de Barcelona; España
Fil: Mestres, Lourdes. Universidad de Barcelona; España
Fil: García, José E.. Universidad Politécnica de Catalunya; España
Materia
CERAMICS
DIELECTRIC RESPONSE
FERROELECTRICS
PIEZOELECTRICITY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/94222
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/94222
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary regionMachado, Rodrigodos Santos, Valdeci B.Ochoa, DiegoCerdeiras, ElenaMestres, LourdesGarcía, José E.CERAMICSDIELECTRIC RESPONSEFERROELECTRICSPIEZOELECTRICITYhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A systematic study of the functional properties of the (1-x)(Bi0.5Na0.5)TiO3–xBaTiO3(BNT-xBT) piezoceramic system for 0.05 ≤ x ≤ 0.07 is performed. The samples are obtained through the conventional solid-state route. The expected microstructure for these compounds, with no significant dependence on the composition, is verified by field-emission scanning electron microscopy. The morphotropic phase boundary (MPB) is detected for x = 0.06–0.07 by means of the Rietveld analysis of X-ray diffraction data. The dielectric spectra show a frequency-independent, completely diffuse phase transition with a composition-dependent diffusivity coefficient. The depolarization temperature is effectively evaluated from pyroelectric measurements, the value being strongly dependent on the composition. A significant contribution of the extrinsic effect to elastic, dielectric and electromechanical properties is revealed for MPB BNT-xBT. The Bi3+substitution by Ba2+leads to the formation of A-site vacancies, which give rise to the enhancement of domain wall motion, as occurs in other perovskite-type piezoelectrics. Good functional properties are achieved for x = 0.07 (d33 = 180 pC/N), which are similar or even better than those obtained by complex synthesis routes. This system exhibits a remarkable stability in the permittivity that has hitherto not been reported. This fact may open the way for BNT-BT compositions to be used in specific applications in which lead-free piezoceramics have previously been employed with little success, e.g. in high power devices.Fil: Machado, Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: dos Santos, Valdeci B.. Universidad Politécnica de Catalunya; España. Universidade Federal Do Piaui; BrasilFil: Ochoa, Diego. Universidad Politécnica de Catalunya; EspañaFil: Cerdeiras, Elena. Universidad de Barcelona; EspañaFil: Mestres, Lourdes. Universidad de Barcelona; EspañaFil: García, José E.. Universidad Politécnica de Catalunya; EspañaElsevier Science Sa2016-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94222Machado, Rodrigo; dos Santos, Valdeci B.; Ochoa, Diego; Cerdeiras, Elena; Mestres, Lourdes; et al.; Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region; Elsevier Science Sa; Journal of Alloys and Compounds; 690; 8-2016; 568-5740925-8388CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S092583881632494Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jallcom.2016.08.116info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:10:22Zoai:ri.conicet.gov.ar:11336/94222instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:10:23.082CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region
title Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region
spellingShingle Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region
Machado, Rodrigo
CERAMICS
DIELECTRIC RESPONSE
FERROELECTRICS
PIEZOELECTRICITY
title_short Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region
title_full Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region
title_fullStr Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region
title_full_unstemmed Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region
title_sort Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region
dc.creator.none.fl_str_mv Machado, Rodrigo
dos Santos, Valdeci B.
Ochoa, Diego
Cerdeiras, Elena
Mestres, Lourdes
García, José E.
author Machado, Rodrigo
author_facet Machado, Rodrigo
dos Santos, Valdeci B.
Ochoa, Diego
Cerdeiras, Elena
Mestres, Lourdes
García, José E.
author_role author
author2 dos Santos, Valdeci B.
Ochoa, Diego
Cerdeiras, Elena
Mestres, Lourdes
García, José E.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CERAMICS
DIELECTRIC RESPONSE
FERROELECTRICS
PIEZOELECTRICITY
topic CERAMICS
DIELECTRIC RESPONSE
FERROELECTRICS
PIEZOELECTRICITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A systematic study of the functional properties of the (1-x)(Bi0.5Na0.5)TiO3–xBaTiO3(BNT-xBT) piezoceramic system for 0.05 ≤ x ≤ 0.07 is performed. The samples are obtained through the conventional solid-state route. The expected microstructure for these compounds, with no significant dependence on the composition, is verified by field-emission scanning electron microscopy. The morphotropic phase boundary (MPB) is detected for x = 0.06–0.07 by means of the Rietveld analysis of X-ray diffraction data. The dielectric spectra show a frequency-independent, completely diffuse phase transition with a composition-dependent diffusivity coefficient. The depolarization temperature is effectively evaluated from pyroelectric measurements, the value being strongly dependent on the composition. A significant contribution of the extrinsic effect to elastic, dielectric and electromechanical properties is revealed for MPB BNT-xBT. The Bi3+substitution by Ba2+leads to the formation of A-site vacancies, which give rise to the enhancement of domain wall motion, as occurs in other perovskite-type piezoelectrics. Good functional properties are achieved for x = 0.07 (d33 = 180 pC/N), which are similar or even better than those obtained by complex synthesis routes. This system exhibits a remarkable stability in the permittivity that has hitherto not been reported. This fact may open the way for BNT-BT compositions to be used in specific applications in which lead-free piezoceramics have previously been employed with little success, e.g. in high power devices.
Fil: Machado, Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: dos Santos, Valdeci B.. Universidad Politécnica de Catalunya; España. Universidade Federal Do Piaui; Brasil
Fil: Ochoa, Diego. Universidad Politécnica de Catalunya; España
Fil: Cerdeiras, Elena. Universidad de Barcelona; España
Fil: Mestres, Lourdes. Universidad de Barcelona; España
Fil: García, José E.. Universidad Politécnica de Catalunya; España
description A systematic study of the functional properties of the (1-x)(Bi0.5Na0.5)TiO3–xBaTiO3(BNT-xBT) piezoceramic system for 0.05 ≤ x ≤ 0.07 is performed. The samples are obtained through the conventional solid-state route. The expected microstructure for these compounds, with no significant dependence on the composition, is verified by field-emission scanning electron microscopy. The morphotropic phase boundary (MPB) is detected for x = 0.06–0.07 by means of the Rietveld analysis of X-ray diffraction data. The dielectric spectra show a frequency-independent, completely diffuse phase transition with a composition-dependent diffusivity coefficient. The depolarization temperature is effectively evaluated from pyroelectric measurements, the value being strongly dependent on the composition. A significant contribution of the extrinsic effect to elastic, dielectric and electromechanical properties is revealed for MPB BNT-xBT. The Bi3+substitution by Ba2+leads to the formation of A-site vacancies, which give rise to the enhancement of domain wall motion, as occurs in other perovskite-type piezoelectrics. Good functional properties are achieved for x = 0.07 (d33 = 180 pC/N), which are similar or even better than those obtained by complex synthesis routes. This system exhibits a remarkable stability in the permittivity that has hitherto not been reported. This fact may open the way for BNT-BT compositions to be used in specific applications in which lead-free piezoceramics have previously been employed with little success, e.g. in high power devices.
publishDate 2016
dc.date.none.fl_str_mv 2016-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/94222
Machado, Rodrigo; dos Santos, Valdeci B.; Ochoa, Diego; Cerdeiras, Elena; Mestres, Lourdes; et al.; Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region; Elsevier Science Sa; Journal of Alloys and Compounds; 690; 8-2016; 568-574
0925-8388
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94222
identifier_str_mv Machado, Rodrigo; dos Santos, Valdeci B.; Ochoa, Diego; Cerdeiras, Elena; Mestres, Lourdes; et al.; Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3piezoceramics at the morphotropic phase boundary region; Elsevier Science Sa; Journal of Alloys and Compounds; 690; 8-2016; 568-574
0925-8388
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S092583881632494X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jallcom.2016.08.116
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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