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Preparation and properties of colloidal particles. Silica on yttrium iron garnet

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dc.contributor.authorGodoi, RHM
dc.contributor.authorJafelicci, M. J.
dc.contributor.authorPortillo, J.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:30:03Z
dc.date.available2014-05-20T15:30:03Z
dc.date.issued2000-01-01
dc.description.abstractVarious properties of particles can be altered by coating them with a layer of different chemical composition. Yttrium iron garnet (YIG) particles has been coated with silica for control of their sintering, corrosion resistance, and stabilization of magnetic properties. This silica cover was obtained by hydrolysis of tetraethylorthosilicate (TEOS) in 2-propanol. This material was characterized by transmission (TEM) electron microscopy, (XEDS) X-ray energy-dispersive spectrometry, (XPS) X-ray photoemission spectroscopy and (VSM) vibrating sample magnetometry. YIG was heterocoagulated by silica as indicated by TEM micrographies. XPS measurements indicated that only binding energy for silicon and oxygen was found on the silica shell, which confirms that the YIG was covered. The values of the saturation magnetization differ from the heterocoagulated system to well-crystallized YIG.en
dc.description.affiliationSão Paulo State Univ, Inst Chem, São Paulo, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Inst Chem, São Paulo, Brazil
dc.format.extent21-26
dc.identifierhttp://ammtiac.alionscience.com/ammt/iacdocs.do?AM023214
dc.identifier.citationNanophase and Nanocomposite Materials Iii. Warrendale: Materials Research Society, v. 581, p. 21-26, 2000.
dc.identifier.issn0272-9172
dc.identifier.urihttp://hdl.handle.net/11449/39502
dc.identifier.wosWOS:000088059300004
dc.language.isoeng
dc.publisherMaterials Research Society
dc.relation.ispartofNanophase and Nanocomposite Materials Iii
dc.relation.ispartofsjr0,139
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titlePreparation and properties of colloidal particles. Silica on yttrium iron garneten
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://ammtiac.alionscience.com/copyright.html
dcterms.rightsHolderMaterials Research Society
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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Araraquara - IQAR - Instituto de Química