Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2

Preliminary results on the effects of magnetic, electrical and structural characteristics of BaFe12O19, with addition of SiO2, prepared by the chemical coprecipitation method are reported. Several firing temperatures were used to investigate the admixture of SiO2 in the samples. Experimental data of...

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Autores: Ponce-Castaneda, S, de Lira-Hueso, R, Perez-Orta, O, Huanosta-Tera, A, Diaz-Castanon, S, Palomares-Sánchez, SA, Mirabal-García, M, Narvaez-Hernández, L
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1999
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Sistema de Información de la Facultad de Ciencias, UNAM
OAI Identifier:oai:repositorio.fciencias.unam.mx:11154/3297
Acceso en línea:http://hdl.handle.net/11154/3297
Access Level:acceso abierto
Palabra clave:Materials Science, Multidisciplinary
Ba ferrite
SiO2
chemical coprecipitation
electrical conductivity
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spelling Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2Ponce-Castaneda, Sde Lira-Hueso, RPerez-Orta, OHuanosta-Tera, ADiaz-Castanon, SPalomares-Sánchez, SAMirabal-García, MNarvaez-Hernández, LMaterials Science, MultidisciplinaryBa ferriteSiO2chemical coprecipitationelectrical conductivityPreliminary results on the effects of magnetic, electrical and structural characteristics of BaFe12O19, with addition of SiO2, prepared by the chemical coprecipitation method are reported. Several firing temperatures were used to investigate the admixture of SiO2 in the samples. Experimental data of electrical conductivity were obtained by ac measurements. Results are presented in terms of thermal and frequency dependent conductivity, sigma(omega). Universal sigma(0) + A omega s-type behavior is observed for log sigma(omega) vs logfwhile log sigma(omega) against 1000,/T, at fixed frequencies, exhibit deviation of an Arrhenius behavior as frequency increases. Generally speaking, curves of ac measurements follow the jump relaxation model. The addition of SiO2 modifies slightly the observed conductivity. Saturation magnetization and coercitivity as a function of the thermal treatment of the samples, in the interval 950 degrees C-1220 degrees C, are also reported.2011-01-22T10:27:40Z2011-01-22T10:27:40Z1999info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0255-5476http://hdl.handle.net/11154/32972667:430-434reponame:Sistema de Información de la Facultad de Ciencias, UNAMinstname:Universidad Nacional Autónoma de Méxicoinstacron:UNAMenMagnetism, Magnetic Materials and their Applicationsinfo:eu-repo/semantics/openAccessoai:repositorio.fciencias.unam.mx:11154/32972025-09-17T19:21:39Z
dc.title.none.fl_str_mv Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2
title Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2
spellingShingle Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2
Ponce-Castaneda, S
Materials Science, Multidisciplinary
Ba ferrite
SiO2
chemical coprecipitation
electrical conductivity
title_short Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2
title_full Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2
title_fullStr Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2
title_full_unstemmed Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2
title_sort Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2
dc.creator.none.fl_str_mv Ponce-Castaneda, S
de Lira-Hueso, R
Perez-Orta, O
Huanosta-Tera, A
Diaz-Castanon, S
Palomares-Sánchez, SA
Mirabal-García, M
Narvaez-Hernández, L
author Ponce-Castaneda, S
author_facet Ponce-Castaneda, S
de Lira-Hueso, R
Perez-Orta, O
Huanosta-Tera, A
Diaz-Castanon, S
Palomares-Sánchez, SA
Mirabal-García, M
Narvaez-Hernández, L
author_role author
author2 de Lira-Hueso, R
Perez-Orta, O
Huanosta-Tera, A
Diaz-Castanon, S
Palomares-Sánchez, SA
Mirabal-García, M
Narvaez-Hernández, L
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Materials Science, Multidisciplinary
Ba ferrite
SiO2
chemical coprecipitation
electrical conductivity
topic Materials Science, Multidisciplinary
Ba ferrite
SiO2
chemical coprecipitation
electrical conductivity
description Preliminary results on the effects of magnetic, electrical and structural characteristics of BaFe12O19, with addition of SiO2, prepared by the chemical coprecipitation method are reported. Several firing temperatures were used to investigate the admixture of SiO2 in the samples. Experimental data of electrical conductivity were obtained by ac measurements. Results are presented in terms of thermal and frequency dependent conductivity, sigma(omega). Universal sigma(0) + A omega s-type behavior is observed for log sigma(omega) vs logf
publishDate 1999
dc.date.none.fl_str_mv 1999
2011-01-22T10:27:40Z
2011-01-22T10:27:40Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0255-5476
http://hdl.handle.net/11154/3297
2667
identifier_str_mv 0255-5476
2667
url http://hdl.handle.net/11154/3297
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv Magnetism, Magnetic Materials and their Applications
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv :430-434
reponame:Sistema de Información de la Facultad de Ciencias, UNAM
instname:Universidad Nacional Autónoma de México
instacron:UNAM
instname_str Universidad Nacional Autónoma de México
instacron_str UNAM
institution UNAM
reponame_str Sistema de Información de la Facultad de Ciencias, UNAM
collection Sistema de Información de la Facultad de Ciencias, UNAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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