Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da Universidade Federal do Ceará (UFC) |
Texto Completo: | http://www.repositorio.ufc.br/handle/riufc/67326 |
Resumo: | In the present work, an electroceramic of the perovskite family, BiCu3Ti3FeO12 (BCTFO), was synthesized by the solid-state reaction method. The structural study was performed by X-ray diffraction and Mössbauer and Raman spectroscopy. Electric and dielectric properties were analyzed by impedance spectroscopy and the Hakki-Coleman method. Due to the BCTFO is isostructural of the CaCu3Ti4O12 (CCTO), the BCTFO presents as a promissory electroceramic. Mössbauer spectroscopy reveals paramagnetic spectra to BCTFO, with two octahedral sites for iron ions. Regarding dielectric properties, for 1 Hz, BCTFO presents a high relative dielectric permittivity (εr ≈ 1 × 104) and dielectric loss (tan δ > 1) and εr = 230.88, tan δ ≈ 1 × 10–2 in the microwave range. The produced ceramic exhibited a high resonance frequency temperature coefficient (τf) with a value of + 2852 ppm °C−1, making it a candidate for fabrication of the thermostable electroceramic composites with other ceramic matrices with negative τf values improving the thermal stability. |
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Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrixX-ray diffractionMössbauer spectroscopyBCTFO ceramicIn the present work, an electroceramic of the perovskite family, BiCu3Ti3FeO12 (BCTFO), was synthesized by the solid-state reaction method. The structural study was performed by X-ray diffraction and Mössbauer and Raman spectroscopy. Electric and dielectric properties were analyzed by impedance spectroscopy and the Hakki-Coleman method. Due to the BCTFO is isostructural of the CaCu3Ti4O12 (CCTO), the BCTFO presents as a promissory electroceramic. Mössbauer spectroscopy reveals paramagnetic spectra to BCTFO, with two octahedral sites for iron ions. Regarding dielectric properties, for 1 Hz, BCTFO presents a high relative dielectric permittivity (εr ≈ 1 × 104) and dielectric loss (tan δ > 1) and εr = 230.88, tan δ ≈ 1 × 10–2 in the microwave range. The produced ceramic exhibited a high resonance frequency temperature coefficient (τf) with a value of + 2852 ppm °C−1, making it a candidate for fabrication of the thermostable electroceramic composites with other ceramic matrices with negative τf values improving the thermal stability.Journal of Materials Science: Materials in Electronics2022-07-21T15:37:21Z2022-07-21T15:37:21Z2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFREITAS, Daniel Barros de et al. Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix. Journal of Materials Science: Materials in Electronics, [s. l.], v. 32, p. 11607-11615, 2021.1573-482Xhttp://www.repositorio.ufc.br/handle/riufc/67326Freitas, Daniel Barros deBezerra Júnior, Manoel HenriqueOliveira, Ronaldo Glauber Maia deMorais, José Eduardo Vasconcelos deBessa, Valéria LimaCarmo, Felipe Felix doPereira, Mariana SáVasconcelos, Igor Frota deSilva, Marcelo Antonio Santos daAndrade, Humberto Dionísio deQueiroz Júnior, Idalmir de SouzaSilva, Ronaldo Santos daSombra, Antônio Sérgio Bezerraengreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFCinfo:eu-repo/semantics/openAccess2022-09-26T17:12:52Zoai:repositorio.ufc.br:riufc/67326Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2024-09-11T18:25:44.949243Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false |
dc.title.none.fl_str_mv |
Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix |
title |
Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix |
spellingShingle |
Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix Freitas, Daniel Barros de X-ray diffraction Mössbauer spectroscopy BCTFO ceramic |
title_short |
Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix |
title_full |
Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix |
title_fullStr |
Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix |
title_full_unstemmed |
Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix |
title_sort |
Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix |
author |
Freitas, Daniel Barros de |
author_facet |
Freitas, Daniel Barros de Bezerra Júnior, Manoel Henrique Oliveira, Ronaldo Glauber Maia de Morais, José Eduardo Vasconcelos de Bessa, Valéria Lima Carmo, Felipe Felix do Pereira, Mariana Sá Vasconcelos, Igor Frota de Silva, Marcelo Antonio Santos da Andrade, Humberto Dionísio de Queiroz Júnior, Idalmir de Souza Silva, Ronaldo Santos da Sombra, Antônio Sérgio Bezerra |
author_role |
author |
author2 |
Bezerra Júnior, Manoel Henrique Oliveira, Ronaldo Glauber Maia de Morais, José Eduardo Vasconcelos de Bessa, Valéria Lima Carmo, Felipe Felix do Pereira, Mariana Sá Vasconcelos, Igor Frota de Silva, Marcelo Antonio Santos da Andrade, Humberto Dionísio de Queiroz Júnior, Idalmir de Souza Silva, Ronaldo Santos da Sombra, Antônio Sérgio Bezerra |
author2_role |
author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Freitas, Daniel Barros de Bezerra Júnior, Manoel Henrique Oliveira, Ronaldo Glauber Maia de Morais, José Eduardo Vasconcelos de Bessa, Valéria Lima Carmo, Felipe Felix do Pereira, Mariana Sá Vasconcelos, Igor Frota de Silva, Marcelo Antonio Santos da Andrade, Humberto Dionísio de Queiroz Júnior, Idalmir de Souza Silva, Ronaldo Santos da Sombra, Antônio Sérgio Bezerra |
dc.subject.por.fl_str_mv |
X-ray diffraction Mössbauer spectroscopy BCTFO ceramic |
topic |
X-ray diffraction Mössbauer spectroscopy BCTFO ceramic |
description |
In the present work, an electroceramic of the perovskite family, BiCu3Ti3FeO12 (BCTFO), was synthesized by the solid-state reaction method. The structural study was performed by X-ray diffraction and Mössbauer and Raman spectroscopy. Electric and dielectric properties were analyzed by impedance spectroscopy and the Hakki-Coleman method. Due to the BCTFO is isostructural of the CaCu3Ti4O12 (CCTO), the BCTFO presents as a promissory electroceramic. Mössbauer spectroscopy reveals paramagnetic spectra to BCTFO, with two octahedral sites for iron ions. Regarding dielectric properties, for 1 Hz, BCTFO presents a high relative dielectric permittivity (εr ≈ 1 × 104) and dielectric loss (tan δ > 1) and εr = 230.88, tan δ ≈ 1 × 10–2 in the microwave range. The produced ceramic exhibited a high resonance frequency temperature coefficient (τf) with a value of + 2852 ppm °C−1, making it a candidate for fabrication of the thermostable electroceramic composites with other ceramic matrices with negative τf values improving the thermal stability. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 2022-07-21T15:37:21Z 2022-07-21T15:37:21Z |
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 |
FREITAS, Daniel Barros de et al. Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix. Journal of Materials Science: Materials in Electronics, [s. l.], v. 32, p. 11607-11615, 2021. 1573-482X http://www.repositorio.ufc.br/handle/riufc/67326 |
identifier_str_mv |
FREITAS, Daniel Barros de et al. Impedance and Mössbauer spectroscopy study of BiCu3Ti3FeO12 dielectric matrix. Journal of Materials Science: Materials in Electronics, [s. l.], v. 32, p. 11607-11615, 2021. 1573-482X |
url |
http://www.repositorio.ufc.br/handle/riufc/67326 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Journal of Materials Science: Materials in Electronics |
publisher.none.fl_str_mv |
Journal of Materials Science: Materials in Electronics |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da Universidade Federal do Ceará (UFC) instname:Universidade Federal do Ceará (UFC) instacron:UFC |
instname_str |
Universidade Federal do Ceará (UFC) |
instacron_str |
UFC |
institution |
UFC |
reponame_str |
Repositório Institucional da Universidade Federal do Ceará (UFC) |
collection |
Repositório Institucional da Universidade Federal do Ceará (UFC) |
repository.name.fl_str_mv |
Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC) |
repository.mail.fl_str_mv |
bu@ufc.br || repositorio@ufc.br |
_version_ |
1813028799460147200 |