Microstructure of doped barium titanate prepared from polymeric precursors

Detalhes bibliográficos
Autor(a) principal: Stojanovic, B. D. [UNESP]
Data de Publicação: 2002
Outros Autores: Foschini, C. R. [UNESP], Zaghete, M. A. [UNESP], Cilense, M. [UNESP], Varela, José Arana [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.3989/cyv.2002.v41.i1.722
http://hdl.handle.net/11449/67085
Resumo: Barium titanate is used extensively as a dielectric in ceramic capacitors, particularly due to its high dielectric constant and low dielectric loss characteristics. It can be made semiconducting by addition of certain dopants and by proper modification of grains and grain boundary properties obtaining very interesting characteristics for various applications. The synthesis method and sintering regime have a strong influence on properties of obtained barium titanate ceramics. Doped barium titanate was prepared with Nb+5 and Y+3 ions as donor dopants, and with Mn+2 ions as acceptor dopant by polymeric precursors method. By this procedure nanosized powders were obtained after calcination. Sintering was performed in the temperature range of 1290°C to 1380°C The microstructure of doped BaTiO3 was performed using scanning electron microscopy. The influence of dopants and sintering temperature on grain size was analysed.
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spelling Microstructure of doped barium titanate prepared from polymeric precursorsBarium titanateDopingGrain sizeMicrostructurePolymeric precursorsSEMBarium titanate is used extensively as a dielectric in ceramic capacitors, particularly due to its high dielectric constant and low dielectric loss characteristics. It can be made semiconducting by addition of certain dopants and by proper modification of grains and grain boundary properties obtaining very interesting characteristics for various applications. The synthesis method and sintering regime have a strong influence on properties of obtained barium titanate ceramics. Doped barium titanate was prepared with Nb+5 and Y+3 ions as donor dopants, and with Mn+2 ions as acceptor dopant by polymeric precursors method. By this procedure nanosized powders were obtained after calcination. Sintering was performed in the temperature range of 1290°C to 1380°C The microstructure of doped BaTiO3 was performed using scanning electron microscopy. The influence of dopants and sintering temperature on grain size was analysed.Instituto de Química UNESP, CP 355, Araraquara, SP, CEP 14801-970Instituto de Química UNESP, CP 355, Araraquara, SP, CEP 14801-970Universidade Estadual Paulista (Unesp)Stojanovic, B. D. [UNESP]Foschini, C. R. [UNESP]Zaghete, M. A. [UNESP]Cilense, M. [UNESP]Varela, José Arana [UNESP]2014-05-27T11:20:33Z2014-05-27T11:20:33Z2002-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article190-193application/pdfhttp://dx.doi.org/10.3989/cyv.2002.v41.i1.722Boletin de la Sociedad Espanola de Ceramica y Vidrio, v. 41, n. 1, p. 190-193, 2002.0366-3175http://hdl.handle.net/11449/6708510.3989/cyv.2002.v41.i1.722WOS:0001741512000372-s2.0-526491249442-s2.0-52649124944.pdf19223571848427670000-0003-1300-4978Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBoletin de la Sociedad Espanola de Ceramica y Vidrio1.0490,264info:eu-repo/semantics/openAccess2024-06-28T13:55:08Zoai:repositorio.unesp.br:11449/67085Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:04:57.681836Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Microstructure of doped barium titanate prepared from polymeric precursors
title Microstructure of doped barium titanate prepared from polymeric precursors
spellingShingle Microstructure of doped barium titanate prepared from polymeric precursors
Stojanovic, B. D. [UNESP]
Barium titanate
Doping
Grain size
Microstructure
Polymeric precursors
SEM
title_short Microstructure of doped barium titanate prepared from polymeric precursors
title_full Microstructure of doped barium titanate prepared from polymeric precursors
title_fullStr Microstructure of doped barium titanate prepared from polymeric precursors
title_full_unstemmed Microstructure of doped barium titanate prepared from polymeric precursors
title_sort Microstructure of doped barium titanate prepared from polymeric precursors
author Stojanovic, B. D. [UNESP]
author_facet Stojanovic, B. D. [UNESP]
Foschini, C. R. [UNESP]
Zaghete, M. A. [UNESP]
Cilense, M. [UNESP]
Varela, José Arana [UNESP]
author_role author
author2 Foschini, C. R. [UNESP]
Zaghete, M. A. [UNESP]
Cilense, M. [UNESP]
Varela, José Arana [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Stojanovic, B. D. [UNESP]
Foschini, C. R. [UNESP]
Zaghete, M. A. [UNESP]
Cilense, M. [UNESP]
Varela, José Arana [UNESP]
dc.subject.por.fl_str_mv Barium titanate
Doping
Grain size
Microstructure
Polymeric precursors
SEM
topic Barium titanate
Doping
Grain size
Microstructure
Polymeric precursors
SEM
description Barium titanate is used extensively as a dielectric in ceramic capacitors, particularly due to its high dielectric constant and low dielectric loss characteristics. It can be made semiconducting by addition of certain dopants and by proper modification of grains and grain boundary properties obtaining very interesting characteristics for various applications. The synthesis method and sintering regime have a strong influence on properties of obtained barium titanate ceramics. Doped barium titanate was prepared with Nb+5 and Y+3 ions as donor dopants, and with Mn+2 ions as acceptor dopant by polymeric precursors method. By this procedure nanosized powders were obtained after calcination. Sintering was performed in the temperature range of 1290°C to 1380°C The microstructure of doped BaTiO3 was performed using scanning electron microscopy. The influence of dopants and sintering temperature on grain size was analysed.
publishDate 2002
dc.date.none.fl_str_mv 2002-12-01
2014-05-27T11:20:33Z
2014-05-27T11:20:33Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.3989/cyv.2002.v41.i1.722
Boletin de la Sociedad Espanola de Ceramica y Vidrio, v. 41, n. 1, p. 190-193, 2002.
0366-3175
http://hdl.handle.net/11449/67085
10.3989/cyv.2002.v41.i1.722
WOS:000174151200037
2-s2.0-52649124944
2-s2.0-52649124944.pdf
1922357184842767
0000-0003-1300-4978
url http://dx.doi.org/10.3989/cyv.2002.v41.i1.722
http://hdl.handle.net/11449/67085
identifier_str_mv Boletin de la Sociedad Espanola de Ceramica y Vidrio, v. 41, n. 1, p. 190-193, 2002.
0366-3175
10.3989/cyv.2002.v41.i1.722
WOS:000174151200037
2-s2.0-52649124944
2-s2.0-52649124944.pdf
1922357184842767
0000-0003-1300-4978
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Boletin de la Sociedad Espanola de Ceramica y Vidrio
1.049
0,264
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 190-193
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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