Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperatures

In this work, the mechanically alloyed FeZr (at. %) composition has been used to study the influence of milling time on its homogeneity and magnetic properties. The microstructure and Fe environment results show the formation of an almost fully amorphous alloy after 50 h of milling in a mixture of p...

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Autores: Manchón-Gordón, Alejandro F., Ipus, Jhon J., Blázquez, Javier S., Conde, Clara F., Conde Amiano, Alejandro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/216510
Acceso en línea:http://hdl.handle.net/10261/216510
Access Level:acceso abierto
Palabra clave:Mechanical alloying and milling
Amorphous and nanocrystalline materials
Soft magnetic materials
Mössbauer spectroscopy
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spelling Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperaturesManchón-Gordón, Alejandro F.Ipus, Jhon J.Blázquez, Javier S.Conde, Clara F.Conde Amiano, AlejandroMechanical alloying and millingAmorphous and nanocrystalline materialsSoft magnetic materialsMössbauer spectroscopyIn this work, the mechanically alloyed FeZr (at. %) composition has been used to study the influence of milling time on its homogeneity and magnetic properties. The microstructure and Fe environment results show the formation of an almost fully amorphous alloy after 50 h of milling in a mixture of pure 70 at. % Fe and 30 at. % Zr. The soft magnetic behavior of the samples enhances with the increase of the milling time, which is ascribed to the averaging out of the magnetocrystalline anisotropy as the crystal size decreases and the amorphous fraction increases. The formation of a non-perfectly homogenous system leads to a certain compositional heterogeneity, motivating the existence of a distribution of Curie temperatures. The parameters of the distribution (the average Curie temperature, TC, and the broadening of the distribution, DTC) have been obtained using a recently reported procedure, based on the analysis of the approach towards the saturation curves and the magnetocaloric effect. The decrease of DTC and the increase of TC with the milling time are in agreement with the microstructural results. As the remaining α-Fe phase decreases, the amorphous matrix is enriched in Fe atoms, enhancing its magnetic response.Multidisciplinary Digital Publishing InstituteConde Amiano, Alejandro [0000-0002-1067-2754]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/216510reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.3390/ma13020490Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2165102026-05-22T06:33:51Z
dc.title.none.fl_str_mv Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperatures
title Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperatures
spellingShingle Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperatures
Manchón-Gordón, Alejandro F.
Mechanical alloying and milling
Amorphous and nanocrystalline materials
Soft magnetic materials
Mössbauer spectroscopy
title_short Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperatures
title_full Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperatures
title_fullStr Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperatures
title_full_unstemmed Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperatures
title_sort Influence of milling time on the homogeneity and magnetism of a fe70Zr30 partially amorphous alloy: Distribution of curie temperatures
dc.creator.none.fl_str_mv Manchón-Gordón, Alejandro F.
Ipus, Jhon J.
Blázquez, Javier S.
Conde, Clara F.
Conde Amiano, Alejandro
author Manchón-Gordón, Alejandro F.
author_facet Manchón-Gordón, Alejandro F.
Ipus, Jhon J.
Blázquez, Javier S.
Conde, Clara F.
Conde Amiano, Alejandro
author_role author
author2 Ipus, Jhon J.
Blázquez, Javier S.
Conde, Clara F.
Conde Amiano, Alejandro
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Conde Amiano, Alejandro [0000-0002-1067-2754]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Mechanical alloying and milling
Amorphous and nanocrystalline materials
Soft magnetic materials
Mössbauer spectroscopy
topic Mechanical alloying and milling
Amorphous and nanocrystalline materials
Soft magnetic materials
Mössbauer spectroscopy
description In this work, the mechanically alloyed FeZr (at. %) composition has been used to study the influence of milling time on its homogeneity and magnetic properties. The microstructure and Fe environment results show the formation of an almost fully amorphous alloy after 50 h of milling in a mixture of pure 70 at. % Fe and 30 at. % Zr. The soft magnetic behavior of the samples enhances with the increase of the milling time, which is ascribed to the averaging out of the magnetocrystalline anisotropy as the crystal size decreases and the amorphous fraction increases. The formation of a non-perfectly homogenous system leads to a certain compositional heterogeneity, motivating the existence of a distribution of Curie temperatures. The parameters of the distribution (the average Curie temperature, TC, and the broadening of the distribution, DTC) have been obtained using a recently reported procedure, based on the analysis of the approach towards the saturation curves and the magnetocaloric effect. The decrease of DTC and the increase of TC with the milling time are in agreement with the microstructural results. As the remaining α-Fe phase decreases, the amorphous matrix is enriched in Fe atoms, enhancing its magnetic response.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/216510
url http://hdl.handle.net/10261/216510
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.3390/ma13020490
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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