Structural and dielectric properties of relaxor Sr0.5Ba0.5Bi2Nb2O9 ceramic
dc.contributor.author | Behera, B. [UNESP] | |
dc.contributor.author | Araujo, E. B. [UNESP] | |
dc.contributor.author | Junior, A. F. | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Universidade Federal de Goiás (UFG) | |
dc.date.accessioned | 2014-05-20T13:29:48Z | |
dc.date.available | 2014-05-20T13:29:48Z | |
dc.date.issued | 2010-01-01 | |
dc.description.abstract | Sr0.5Ba0.5Bi2Nb2O9 ceramic was prepared by a conventional solid state reaction method and studied using X-ray powder diffraction and dielectric measurements. At room temperature, an orthorhombic structure was confirmed and their parameters were obtained using the Rietveld method. Dielectric properties were studied in a broad range of temperatures and frequencies. Typical relaxor behaviour was observed with strong dispersion of the complex relative dielectric permittivity. The temperature of the maximum dielectric constant T-m decreases with increasing frequency, and shifts towards higher temperature side. The activation energy E-a approximate to 0.194 +/- 0.003 eV and freezing temperature T-f approximate to 371 +/- 2 K values were found using the Vogel-Fulcher relationship. Conduction process in the material may be due to the hopping of charge carriers at low temperatures and small polarons and/or singly ionised oxygen vacancies at higher temperatures. | en |
dc.description.affiliation | Univ Estadual Paulista, Dept Fis & Quim, BR-15385000 Ilha Solteira, SP, Brazil | |
dc.description.affiliation | Universidade Federal de Goiás (UFG), Inst Fis, BR-74001970 Goiania, Go, Brazil | |
dc.description.affiliationUnesp | Univ Estadual Paulista, Dept Fis & Quim, BR-15385000 Ilha Solteira, SP, Brazil | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
dc.description.sponsorship | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
dc.description.sponsorshipId | FAPESP: 07/00183-7 | |
dc.description.sponsorshipId | FAPESP: 07/05302-4 | |
dc.description.sponsorshipId | CNPq: 301382/2006-9 | |
dc.format.extent | 1-5 | |
dc.identifier | http://dx.doi.org/10.1179/174367509X12447975734195 | |
dc.identifier.citation | Advances In Applied Ceramics. Leeds: Maney Publishing, v. 109, n. 1, p. 1-5, 2010. | |
dc.identifier.doi | 10.1179/174367509X12447975734195 | |
dc.identifier.issn | 1743-6753 | |
dc.identifier.lattes | 6725982228402054 | |
dc.identifier.uri | http://hdl.handle.net/11449/10087 | |
dc.identifier.wos | WOS:000275304400001 | |
dc.language.iso | eng | |
dc.publisher | Maney Publishing | |
dc.relation.ispartof | Advances In Applied Ceramics | |
dc.relation.ispartofjcr | 1.092 | |
dc.relation.ispartofsjr | 0,371 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | Bismuth layered | en |
dc.subject | Aurivillius | en |
dc.subject | Relaxor | en |
dc.title | Structural and dielectric properties of relaxor Sr0.5Ba0.5Bi2Nb2O9 ceramic | en |
dc.type | Artigo | |
dcterms.license | http://maneypublishing.com/index.php/resources/authors/copyright_and_permissions_information_for_authors/ | |
dcterms.rightsHolder | Maney Publishing | |
unesp.author.lattes | 6725982228402054 | |
unesp.campus | Universidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteira | pt |
unesp.department | Física e Química - FEIS | pt |
Arquivos
Licença do Pacote
1 - 2 de 2
Nenhuma Miniatura disponível
- Nome:
- license.txt
- Tamanho:
- 1.71 KB
- Formato:
- Item-specific license agreed upon to submission
- Descrição:
Nenhuma Miniatura disponível
- Nome:
- license.txt
- Tamanho:
- 1.71 KB
- Formato:
- Item-specific license agreed upon to submission
- Descrição: