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https://hdl.handle.net/1822/85610
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Campo DC | Valor | Idioma |
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dc.contributor.author | Barbosa, José Gusman | por |
dc.contributor.author | Almeida, B. G. | por |
dc.contributor.author | Araújo, C. | por |
dc.contributor.author | Mendes, J. A. | por |
dc.date.accessioned | 2023-07-21T10:42:43Z | - |
dc.date.available | 2023-07-21T10:42:43Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | Barbosa, J. G., Almeida, B. G., Araujo, C., & Mendes, J. A. (2008, October 21). Temperature Dependence of the Dielectric Permittivity of BaTiO3-CoFe2O4 Ceramic Composites. Ferroelectrics. Informa UK Limited. http://doi.org/10.1080/00150190802365590 | por |
dc.identifier.issn | 0015-0193 | - |
dc.identifier.uri | https://hdl.handle.net/1822/85610 | - |
dc.description.abstract | Two-phase ceramic composites of cobalt ferrite dispersed in a barium titanate matrix were prepared and their dielectric permittivity was characterized. A rounding of their dielectric constant near the ferroelectric transition temperature of the BaTiO3 phase was observed. A generalized brick-wall model, taking into account the BaTiO3 contribution, fitted with the Landau-Devonshire theory, and the CoFe2O4 permittivity, experimentally determined, was used in order to obtain their effective dielectric constant. The effective model was applied to the discussion and fitting of the temperature dependence of the dielectric permittivity of the composites. The Landau-Devonshire coefficients for the BaTiO3 phase were also obtained. | por |
dc.description.sponsorship | This work has been financially supported by the Portuguese Foundation for Science and Technology (FCT), through the project POCI/CTM/60181/2004. | por |
dc.language.iso | eng | por |
dc.publisher | Taylor & Francis | por |
dc.relation | info:eu-repo/grantAgreement/FCT/POCI/POCI%2FCTM%2F60181%2F2004/PT | por |
dc.rights | openAccess | por |
dc.subject | BaTiO3-CoFe2O4 | por |
dc.subject | composites | por |
dc.subject | dielectric properties | por |
dc.subject | effective medium | por |
dc.subject | BaTiO -CoFe O 3 2 4 | por |
dc.title | Temperature dependence of the dielectric permittivity of BaTiO3-CoFe2O4 ceramic composites | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://doi.org/10.1080/00150190802365590 | por |
oaire.citationStartPage | 15 | por |
oaire.citationEndPage | 22 | por |
oaire.citationIssue | 1 PART 1 | por |
oaire.citationVolume | 367 | por |
dc.identifier.eissn | 1563-5112 | - |
dc.identifier.doi | 10.1080/00150190802365590 | por |
dc.subject.fos | Ciências Naturais::Ciências Físicas | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Ferroelectrics | por |
oaire.version | AM | por |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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JG Barbosa 2007 paper - acepted.pdf | 524,26 kB | Adobe PDF | Ver/Abrir |