Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder

High purity powders of Fe, Si and B mixed with atomic composition Fe78Si9B13 are subjected, after arc melting, to a melt spinning process. The amorphous ribbons are transformed into powder by mechanical milling, reaching mean sizes of 65 and 262 µm, taking care of maintaining the amorphous character...

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Autores: Aranda Louvier, Rosa María, Urban. Petr, Cintas, Jesús, Montes, Juan Manuel, Gómez Cuevas, Francisco de Paula
Formato: artículo
Fecha de publicación:2026
País:España
Recursos:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:dnet:ariasmontano::a4048f1fc645e8262dceb718fd14abcc
Acesso em linha:https://hdl.handle.net/10272/28173
Access Level:acceso abierto
Palavra-chave:Capacitor electrical discharge sintering
Amorphous/nanocrystalline alloys
Powder metallurgy
FAST
Melt spinning
Mechanical milling
33 Ciencias Tecnológicas
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spelling Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B PowderAranda Louvier, Rosa MaríaUrban. PetrCintas, JesúsMontes, Juan ManuelGómez Cuevas, Francisco de PaulaCapacitor electrical discharge sinteringAmorphous/nanocrystalline alloysPowder metallurgyFASTMelt spinningMechanical milling33 Ciencias TecnológicasHigh purity powders of Fe, Si and B mixed with atomic composition Fe78Si9B13 are subjected, after arc melting, to a melt spinning process. The amorphous ribbons are transformed into powder by mechanical milling, reaching mean sizes of 65 and 262 µm, taking care of maintaining the amorphous character. The powders are sintered by means of a very quick capacitor electrical discharge (CEDS), while trying to maintain the initial structure of the powders. The CEDS process is analyzed depending on the thermal energy applied during the discharge, as well as on the particle size of the powders and the powders’ mass. The porosity, microstructure, hardness, electrical resistivity and magnetic properties of the prepared compacts are analyzed. Thus, for powders with a mean size of 262 μm, the porosity can be reduced from 0.33 to 0.11 after sintering, reaching a microhardness of up to 1100 HV1 after applying a discharge of 2640 J/s. A coercivity of 1895 A/m and a saturation flux density of 1.32 T are achieved in the compact, which maintains a microstructure with up to 64% of amorphous phase.MDPI20262026-01-0120262026-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10272/28173reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:dnet:ariasmontano::a4048f1fc645e8262dceb718fd14abcc2026-06-02T14:58:11Z
dc.title.none.fl_str_mv Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
title Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
spellingShingle Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
Aranda Louvier, Rosa María
Capacitor electrical discharge sintering
Amorphous/nanocrystalline alloys
Powder metallurgy
FAST
Melt spinning
Mechanical milling
33 Ciencias Tecnológicas
title_short Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
title_full Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
title_fullStr Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
title_full_unstemmed Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
title_sort Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
dc.creator.none.fl_str_mv Aranda Louvier, Rosa María
Urban. Petr
Cintas, Jesús
Montes, Juan Manuel
Gómez Cuevas, Francisco de Paula
author Aranda Louvier, Rosa María
author_facet Aranda Louvier, Rosa María
Urban. Petr
Cintas, Jesús
Montes, Juan Manuel
Gómez Cuevas, Francisco de Paula
author_role author
author2 Urban. Petr
Cintas, Jesús
Montes, Juan Manuel
Gómez Cuevas, Francisco de Paula
author2_role author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Capacitor electrical discharge sintering
Amorphous/nanocrystalline alloys
Powder metallurgy
FAST
Melt spinning
Mechanical milling
33 Ciencias Tecnológicas
topic Capacitor electrical discharge sintering
Amorphous/nanocrystalline alloys
Powder metallurgy
FAST
Melt spinning
Mechanical milling
33 Ciencias Tecnológicas
description High purity powders of Fe, Si and B mixed with atomic composition Fe78Si9B13 are subjected, after arc melting, to a melt spinning process. The amorphous ribbons are transformed into powder by mechanical milling, reaching mean sizes of 65 and 262 µm, taking care of maintaining the amorphous character. The powders are sintered by means of a very quick capacitor electrical discharge (CEDS), while trying to maintain the initial structure of the powders. The CEDS process is analyzed depending on the thermal energy applied during the discharge, as well as on the particle size of the powders and the powders’ mass. The porosity, microstructure, hardness, electrical resistivity and magnetic properties of the prepared compacts are analyzed. Thus, for powders with a mean size of 262 μm, the porosity can be reduced from 0.33 to 0.11 after sintering, reaching a microhardness of up to 1100 HV1 after applying a discharge of 2640 J/s. A coercivity of 1895 A/m and a saturation flux density of 1.32 T are achieved in the compact, which maintains a microstructure with up to 64% of amorphous phase.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026-01-01
2026
2026-01-01
dc.type.none.fl_str_mv journal 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://hdl.handle.net/10272/28173
url https://hdl.handle.net/10272/28173
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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