Microstructure of doped barium titanate prepared from polymeric precursors
Autor(a) principal: | |
---|---|
Data de Publicação: | 2002 |
Outros Autores: | , , , |
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. |
id |
UNSP_71f0dd04431e21891111af47a2a43bf0 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/67085 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
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 |
|
_version_ |
1808129581227442176 |