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

Detalhes bibliográficos
Autor(a) principal: Godoi, RHM
Data de Publicação: 2000
Outros Autores: Jafelicci, M. J., Portillo, J.
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://ammtiac.alionscience.com/ammt/iacdocs.do?AM023214
http://hdl.handle.net/11449/39502
Resumo: Various 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.
id UNSP_7d162aecbe2479929de096c85d844837
oai_identifier_str oai:repositorio.unesp.br:11449/39502
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Preparation and properties of colloidal particles. Silica on yttrium iron garnetVarious 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.São Paulo State Univ, Inst Chem, São Paulo, BrazilSão Paulo State Univ, Inst Chem, São Paulo, BrazilMaterials Research SocietyUniversidade Estadual Paulista (Unesp)Godoi, RHMJafelicci, M. J.Portillo, J.2014-05-20T15:30:03Z2014-05-20T15:30:03Z2000-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject21-26http://ammtiac.alionscience.com/ammt/iacdocs.do?AM023214Nanophase and Nanocomposite Materials Iii. Warrendale: Materials Research Society, v. 581, p. 21-26, 2000.0272-9172http://hdl.handle.net/11449/39502WOS:000088059300004Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengNanophase and Nanocomposite Materials Iii0,139info:eu-repo/semantics/openAccess2021-10-23T21:44:17Zoai:repositorio.unesp.br:11449/39502Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:27:46.261525Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Preparation and properties of colloidal particles. Silica on yttrium iron garnet
title Preparation and properties of colloidal particles. Silica on yttrium iron garnet
spellingShingle Preparation and properties of colloidal particles. Silica on yttrium iron garnet
Godoi, RHM
title_short Preparation and properties of colloidal particles. Silica on yttrium iron garnet
title_full Preparation and properties of colloidal particles. Silica on yttrium iron garnet
title_fullStr Preparation and properties of colloidal particles. Silica on yttrium iron garnet
title_full_unstemmed Preparation and properties of colloidal particles. Silica on yttrium iron garnet
title_sort Preparation and properties of colloidal particles. Silica on yttrium iron garnet
author Godoi, RHM
author_facet Godoi, RHM
Jafelicci, M. J.
Portillo, J.
author_role author
author2 Jafelicci, M. J.
Portillo, J.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Godoi, RHM
Jafelicci, M. J.
Portillo, J.
description Various 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.
publishDate 2000
dc.date.none.fl_str_mv 2000-01-01
2014-05-20T15:30:03Z
2014-05-20T15:30:03Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://ammtiac.alionscience.com/ammt/iacdocs.do?AM023214
Nanophase and Nanocomposite Materials Iii. Warrendale: Materials Research Society, v. 581, p. 21-26, 2000.
0272-9172
http://hdl.handle.net/11449/39502
WOS:000088059300004
url http://ammtiac.alionscience.com/ammt/iacdocs.do?AM023214
http://hdl.handle.net/11449/39502
identifier_str_mv Nanophase and Nanocomposite Materials Iii. Warrendale: Materials Research Society, v. 581, p. 21-26, 2000.
0272-9172
WOS:000088059300004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Nanophase and Nanocomposite Materials Iii
0,139
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 21-26
dc.publisher.none.fl_str_mv Materials Research Society
publisher.none.fl_str_mv Materials Research Society
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128515786145792

Registros relacionados