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Corrosion protection of fluorzirconate glasses coated by a layer of surface modified tin oxide nanoparticles

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dc.contributor.authorHammer, Peter [UNESP]
dc.contributor.authorRizzato, A. P. [UNESP]
dc.contributor.authorAlvarez, F.
dc.contributor.authorLanders, R.
dc.contributor.authorPulcinelli, Sandra Helena [UNESP]
dc.contributor.authorSantilli, Celso Valentim [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-27T11:21:51Z
dc.date.available2014-05-27T11:21:51Z
dc.date.issued2006-04-28
dc.description.abstractThe protection efficiency against water corrosion of fluorozirconate glass, ZBLAN, dip-coated by nanocrystalline tin oxide film containing the organic molecule Tiron® was investigated by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). The chemical bonding structure of the surface region and morphology were studied before and after two water exposure periods of 5 and 30 min. The results of the analysis for the as-grown sample revealed a SnO1.6 phase containing carbon and sulfur, related to Tiron®, and traces of elements related to ZBLAN (Zr, F, Ba). This fact and the clear evidence of the presence of tin oxifluoride specie (SnOxF y) indicates a diffusion of the glass components into the porous coating. After water exposure, the increase of the oxygen concentration accompanied by a strong increase of Zr, F, Ba and Na content is interpreted as filling of the nanopores of the film by glass compounds. The formation of a compact protective layer is supported by the morphological changes observed by AFM. © 2005 Elsevier B.V. All rights reserved.en
dc.description.affiliationInstituto de Química UNESP Departamento de Físico-Química, P.O. Box 355, CEP 14801-970, Araraquara, SP
dc.description.affiliationInstituto de Física Gleb Wataghin Universidade Estadual de Campinas, Unicamp, 13083-970, Campinas, SP
dc.description.affiliationUnespInstituto de Química UNESP Departamento de Físico-Química, P.O. Box 355, CEP 14801-970, Araraquara, SP
dc.format.extent94-98
dc.identifierhttp://dx.doi.org/10.1016/j.tsf.2005.07.252
dc.identifier.citationThin Solid Films, v. 502, n. 1-2, p. 94-98, 2006.
dc.identifier.doi10.1016/j.tsf.2005.07.252
dc.identifier.issn0040-6090
dc.identifier.lattes6466841023506131
dc.identifier.lattes9971202585286967
dc.identifier.lattes5584298681870865
dc.identifier.orcid0000-0002-3823-0050
dc.identifier.orcid0000-0002-8356-8093
dc.identifier.scopus2-s2.0-33344473339
dc.identifier.urihttp://hdl.handle.net/11449/68857
dc.identifier.wosWOS:000236309200019
dc.language.isoeng
dc.relation.ispartofThin Solid Films
dc.relation.ispartofjcr1.939
dc.relation.ispartofsjr0,617
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCorrosion
dc.subjectTin oxide
dc.subjectX-ray photoelectron spectroscopy (XPS)
dc.subjectZirconium
dc.subjectChemical bonds
dc.subjectGlass
dc.subjectMicrostructure
dc.subjectNanostructured materials
dc.subjectThin films
dc.subjectX ray photoelectron spectroscopy
dc.subjectZirconium compounds
dc.subjectFluorozirconate glass
dc.subjectPorous coating
dc.subjectWater corrosion
dc.subjectCorrosion protection
dc.titleCorrosion protection of fluorzirconate glasses coated by a layer of surface modified tin oxide nanoparticlesen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dspace.entity.typePublication
unesp.author.lattes6466841023506131[1]
unesp.author.lattes9971202585286967
unesp.author.lattes5584298681870865[6]
unesp.author.orcid0000-0002-3823-0050[1]
unesp.author.orcid0000-0002-8356-8093[6]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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Araraquara - IQAR - Instituto de Química