High-coercivity ultralight transparent magnets

Magnetic silica-aerogel composites have been synthesized by dispersing hard magnetic Nd2Fe14B particles in a sol during a fast sol-gel process and subsequently supercritically drying the resulting gels. The composites are found to retain most of the outstanding properties of their constituents: the...

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Detalles Bibliográficos
Autores: Gich, Martí|||0000-0001-9958-0057, Roig i Serra, Anna|||0000-0001-6464-7573
Tipo de recurso: artículo
Fecha de publicación:2003
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:116252
Acceso en línea:https://ddd.uab.cat/record/116252
https://dx.doi.org/urn:doi:10.1063/1.1578538
Access Level:acceso abierto
Palabra clave:Magnetic fields
Materials properties
Coercive force
Gels
Magnetic anisotropy
Magnets
Powders
Remanence
Silica
Sol gel processing
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spelling High-coercivity ultralight transparent magnetsGich, Martí|||0000-0001-9958-0057Roig i Serra, Anna|||0000-0001-6464-7573Magnetic fieldsMaterials propertiesCoercive forceGelsMagnetic anisotropyMagnetsPowdersRemanenceSilicaSol gel processingMagnetic silica-aerogel composites have been synthesized by dispersing hard magnetic Nd2Fe14B particles in a sol during a fast sol-gel process and subsequently supercritically drying the resulting gels. The composites are found to retain most of the outstanding properties of their constituents: the large coercivity and moderate remanence of the magnetic powders and the transparency and low density of silica aerogels. Moreover, aerogels synthesized in the presence of a magnetic field exhibit the alignment of the particles, forming needle-like structures along the direction of the applied magnetic field, which results in optical and magnetic anisotropies. Due to their unique combination of properties, these types of materials may be appealing for magneto-optics and magnetic actuator applications.American Physical Society 22003-01-0120032003-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/116252https://dx.doi.org/urn:doi:10.1063/1.1578538reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1162522026-06-06T12:50:31Z
dc.title.none.fl_str_mv High-coercivity ultralight transparent magnets
title High-coercivity ultralight transparent magnets
spellingShingle High-coercivity ultralight transparent magnets
Gich, Martí|||0000-0001-9958-0057
Magnetic fields
Materials properties
Coercive force
Gels
Magnetic anisotropy
Magnets
Powders
Remanence
Silica
Sol gel processing
title_short High-coercivity ultralight transparent magnets
title_full High-coercivity ultralight transparent magnets
title_fullStr High-coercivity ultralight transparent magnets
title_full_unstemmed High-coercivity ultralight transparent magnets
title_sort High-coercivity ultralight transparent magnets
dc.creator.none.fl_str_mv Gich, Martí|||0000-0001-9958-0057
Roig i Serra, Anna|||0000-0001-6464-7573
author Gich, Martí|||0000-0001-9958-0057
author_facet Gich, Martí|||0000-0001-9958-0057
Roig i Serra, Anna|||0000-0001-6464-7573
author_role author
author2 Roig i Serra, Anna|||0000-0001-6464-7573
author2_role author
dc.contributor.none.fl_str_mv American Physical Society
dc.subject.none.fl_str_mv Magnetic fields
Materials properties
Coercive force
Gels
Magnetic anisotropy
Magnets
Powders
Remanence
Silica
Sol gel processing
topic Magnetic fields
Materials properties
Coercive force
Gels
Magnetic anisotropy
Magnets
Powders
Remanence
Silica
Sol gel processing
description Magnetic silica-aerogel composites have been synthesized by dispersing hard magnetic Nd2Fe14B particles in a sol during a fast sol-gel process and subsequently supercritically drying the resulting gels. The composites are found to retain most of the outstanding properties of their constituents: the large coercivity and moderate remanence of the magnetic powders and the transparency and low density of silica aerogels. Moreover, aerogels synthesized in the presence of a magnetic field exhibit the alignment of the particles, forming needle-like structures along the direction of the applied magnetic field, which results in optical and magnetic anisotropies. Due to their unique combination of properties, these types of materials may be appealing for magneto-optics and magnetic actuator applications.
publishDate 2003
dc.date.none.fl_str_mv 2
2003-01-01
2003
2003-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/116252
https://dx.doi.org/urn:doi:10.1063/1.1578538
url https://ddd.uab.cat/record/116252
https://dx.doi.org/urn:doi:10.1063/1.1578538
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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