The influence of aluminium on the overall properties of SnO2-based varistors

Página do item simplificado
dc.contributor.authorParra, Rodrigo
dc.contributor.authorManiette, Yves
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorCastro, Miriam S.
dc.contributor.institutionUNMdP
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:23:26Z
dc.date.available2014-05-20T15:23:26Z
dc.date.issued2007-07-01
dc.description.abstractThe influence of aluminium on the development of the microstructure and on the electrical behaviour of the SnO2 center dot Co3O4 center dot Nb2O5 typical varistor system was studied. Two sources of Al were used, alumina (Al2O3) and boehmite (AlO(OH)). The microstructural features were characterised with scanning (SEM) and transmission (TEM) electron microscopies. The different phases present in the studied samples were also studied with XRD, EDS and electron diffraction patterns of selected areas (SAED). Particles containing Sri, Co, Al, and O were unveiled with TEM. Impedance spectroscopy measurements and current density versus electric field characteristics revealed superior electrical properties for samples with AlO(OH). The higher non-linearity (alpha = 19) was achieved with the addition of 0.1% mol of boehmite. The influence of the secondary phases on the electrical properties is also addressed in this work.en
dc.description.affiliationUNMdP, CONICET, INTEMA, Inst Invest Ciência & Tecnol Mat, Mar Del Plata, Argentina
dc.description.affiliationUNESP, Inst Quim, BR-14801970 Araraquara, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, BR-14801970 Araraquara, Brazil
dc.format.extent4832-4837
dc.identifierhttp://dx.doi.org/10.1007/s10853-006-0749-5
dc.identifier.citationJournal of Materials Science. New York: Springer, v. 42, n. 13, p. 4832-4837, 2007.
dc.identifier.doi10.1007/s10853-006-0749-5
dc.identifier.issn0022-2461
dc.identifier.urihttp://hdl.handle.net/11449/34222
dc.identifier.wosWOS:000247814800016
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal of Materials Science
dc.relation.ispartofjcr2.993
dc.relation.ispartofsjr0,807
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleThe influence of aluminium on the overall properties of SnO2-based varistorsen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

Arquivos

Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos - Físico Química - IQ