Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5

Centrifugal atomization is a rapid solidification technique for producing metal powders. However, its wide application has been limited to the production of common metal powders and their corresponding alloys. Therefore, there is a lack of research on the production of novel materials such as metall...

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Detalles Bibliográficos
Autores: Pijuan, Jordi, Cegarra, Sasha Alejandra, Dosta, Sergi, Albaladejo-Fuentes, Vicente, Riera, Maria Dolores
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/192721
Acceso en línea:https://hdl.handle.net/2445/192721
Access Level:acceso abierto
Palabra clave:Vidres metàl·lics
Refrigeració
Metallic glasses
Cooling
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spelling Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5Pijuan, JordiCegarra, Sasha AlejandraDosta, SergiAlbaladejo-Fuentes, VicenteRiera, Maria DoloresVidres metàl·licsRefrigeracióMetallic glassesCoolingCentrifugal atomization is a rapid solidification technique for producing metal powders. However, its wide application has been limited to the production of common metal powders and their corresponding alloys. Therefore, there is a lack of research on the production of novel materials such as metallic glasses using this technology. In this paper, aluminum-based glassy powders (Al86Ni8Y4.5La1.5) were produced by centrifugal atomization. The effects of disk speed, atomization gas, and particle size on the cooling rate and the final microstructure of the resulting powder were investigated. The powders were characterized using SEM and XRD, and the amorphous fractions of the atomized powder samples were quantified through DSC analysis. A theoretical model was developed to evaluate the thermal evolution of the atomized droplets and to calculate their cooling rate. The average cooling rate experienced by the centrifugally atomized powder was calculated to be approximately 7 × 105 Ks−1 for particle sizes of 32.5 μm atomized at 40,000 rpm in a helium atmosphere. Amorphous fractions from 60% to 70% were obtained in particles with sizes of up to 125 μm in the most favorable atomization conditions.MDPI2023202320222023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion14 p.application/pdfhttps://hdl.handle.net/2445/192721Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3390/ma15228159Materials, 2022, vol. 15, num. 22, p. 8159https://doi.org/10.3390/ma15228159cc-by (c) Pijuan, Jordi et al., 2022https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1927212026-05-29T05:05:01Z
dc.title.none.fl_str_mv Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5
title Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5
spellingShingle Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5
Pijuan, Jordi
Vidres metàl·lics
Refrigeració
Metallic glasses
Cooling
title_short Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5
title_full Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5
title_fullStr Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5
title_full_unstemmed Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5
title_sort Centrifugal Atomization of Glass-Forming Alloy Al86Ni8Y4.5La1.5
dc.creator.none.fl_str_mv Pijuan, Jordi
Cegarra, Sasha Alejandra
Dosta, Sergi
Albaladejo-Fuentes, Vicente
Riera, Maria Dolores
author Pijuan, Jordi
author_facet Pijuan, Jordi
Cegarra, Sasha Alejandra
Dosta, Sergi
Albaladejo-Fuentes, Vicente
Riera, Maria Dolores
author_role author
author2 Cegarra, Sasha Alejandra
Dosta, Sergi
Albaladejo-Fuentes, Vicente
Riera, Maria Dolores
author2_role author
author
author
author
dc.subject.none.fl_str_mv Vidres metàl·lics
Refrigeració
Metallic glasses
Cooling
topic Vidres metàl·lics
Refrigeració
Metallic glasses
Cooling
description Centrifugal atomization is a rapid solidification technique for producing metal powders. However, its wide application has been limited to the production of common metal powders and their corresponding alloys. Therefore, there is a lack of research on the production of novel materials such as metallic glasses using this technology. In this paper, aluminum-based glassy powders (Al86Ni8Y4.5La1.5) were produced by centrifugal atomization. The effects of disk speed, atomization gas, and particle size on the cooling rate and the final microstructure of the resulting powder were investigated. The powders were characterized using SEM and XRD, and the amorphous fractions of the atomized powder samples were quantified through DSC analysis. A theoretical model was developed to evaluate the thermal evolution of the atomized droplets and to calculate their cooling rate. The average cooling rate experienced by the centrifugally atomized powder was calculated to be approximately 7 × 105 Ks−1 for particle sizes of 32.5 μm atomized at 40,000 rpm in a helium atmosphere. Amorphous fractions from 60% to 70% were obtained in particles with sizes of up to 125 μm in the most favorable atomization conditions.
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/192721
url https://hdl.handle.net/2445/192721
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3390/ma15228159
Materials, 2022, vol. 15, num. 22, p. 8159
https://doi.org/10.3390/ma15228159
dc.rights.none.fl_str_mv cc-by (c) Pijuan, Jordi et al., 2022
https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Pijuan, Jordi et al., 2022
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14 p.
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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