Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloys

All-d-metal Ni(Co)-Mn-Ti Heusler alloys showing giant magnetocaloric properties at near room temperature are highly desirable for solid-state cooling applications. However, when exploring the literature, the reported magnetocaloric properties vary widely, hinting at the importance of the synthesis r...

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Autores: Khan, Aun N., Moreno-Ramírez, Luis M., Garcia-Garcia, F. Javier, Varela, María, Revuelta-Losada, Jorge, Law, Jia Yan, Franco, V.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/418837
Acesso em linha:http://hdl.handle.net/10261/418837
https://api.elsevier.com/content/abstract/scopus_id/105027463952
Access Level:acceso abierto
Palavra-chave:All-d-metal Ni(Co)-Mn-Ti Heusler alloys
Magnetocaloric effect
Magnetostructural transition
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spelling Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloysKhan, Aun N.Moreno-Ramírez, Luis M.Garcia-Garcia, F. JavierVarela, MaríaRevuelta-Losada, JorgeLaw, Jia YanFranco, V.All-d-metal Ni(Co)-Mn-Ti Heusler alloysMagnetocaloric effectMagnetostructural transitionAll-d-metal Ni(Co)-Mn-Ti Heusler alloys showing giant magnetocaloric properties at near room temperature are highly desirable for solid-state cooling applications. However, when exploring the literature, the reported magnetocaloric properties vary widely, hinting at the importance of the synthesis route. In this work, we select the Ni36Co14Mn35Ti15 composition, and systematically explore different synthesis routes such as arc melting, suction casting and induction melting, to investigate their effect on the magnetostructural transition and magnetocaloric properties. Among the studied samples, the induction melted sample shows the most abrupt martensitic transformation and the lowest thermal hysteresis: 4 K versus 8 K for arc melted and 17 K for suction casted. This abruptness leads to a remarkable isothermal entropy change of 23 J kg− 1 K− 1 for 1.5 T, along with the largest reversible response to date of 29 J kg− 1 K− 1 for 5 T, as compared to the reported magnetocaloric materials undergoing magnetostructural transition. The quantitative analysis of the elemental maps for the studied alloy series reveals that the larger homogeneity in the Ti distribution achieved by induction melting, when compared to the arc melted and suction casted counterparts, should be responsible for the sharpness of phase transformation and the low thermal hysteresis observed.Work supported by Projects PID2019-105720RB-I00, PID2021-1229890OB-C51, and PID2023-146047OB-I00 funded by MCIN/AEI/10.13039/501100011033, US Air Force Office of Scientific Research (FA8655-21-1-7044), the Clean Hydrogen Partnership and its members within the project HyLICAL (Grant no. 101101461), the Research Council of Norway within project LIQUID-H, the European Innovation Council, funded by the European Union, via project CoCoMag (Grant no. 101099736), project PPIT2024-31833, co-financed by EU, Ministerio de Hacienda y Función Pública, FEDER and Junta de Andalucía, and Sevilla University under VII PPIT-US program. JYL acknowledges an Emergia Fellowship from Junta de Andalucía (Ref. EMC21_00418). ANK acknowledges a FPI fellowship from the Spanish MCIN/AEI.Peer reviewedElsevierMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Air Force Office of Scientific Research (US)Research Council of NorwayEuropean CommissionJunta de AndalucíaKhan, Aun N. [0000-0003-2620-4493]Moreno-Ramírez, Luis M. [0000-0003-1937-8663]Garcia-Garcia, F. Javier [0000-0001-7336-273X]Varela, María [0000-0002-6582-7004]Revuelta-Losada, Jorge [0000-0002-6796-4555]Law, Jia Yan [0000-0002-1431-6773]Franco, V. [0000-0003-3028-6815]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262026info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/418837https://api.elsevier.com/content/abstract/scopus_id/105027463952reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105720RB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-146047OB-I00http://dx.doi.org/10.1016/j.jallcom.2026.186135Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4188372026-05-22T06:33:51Z
dc.title.none.fl_str_mv Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloys
title Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloys
spellingShingle Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloys
Khan, Aun N.
All-d-metal Ni(Co)-Mn-Ti Heusler alloys
Magnetocaloric effect
Magnetostructural transition
title_short Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloys
title_full Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloys
title_fullStr Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloys
title_full_unstemmed Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloys
title_sort Enhanced local homogeneity obtained by induction melting for optimizing reversible magnetocaloric response in all-d-metal Ni(Co)-Mn-Ti Heusler alloys
dc.creator.none.fl_str_mv Khan, Aun N.
Moreno-Ramírez, Luis M.
Garcia-Garcia, F. Javier
Varela, María
Revuelta-Losada, Jorge
Law, Jia Yan
Franco, V.
author Khan, Aun N.
author_facet Khan, Aun N.
Moreno-Ramírez, Luis M.
Garcia-Garcia, F. Javier
Varela, María
Revuelta-Losada, Jorge
Law, Jia Yan
Franco, V.
author_role author
author2 Moreno-Ramírez, Luis M.
Garcia-Garcia, F. Javier
Varela, María
Revuelta-Losada, Jorge
Law, Jia Yan
Franco, V.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Air Force Office of Scientific Research (US)
Research Council of Norway
European Commission
Junta de Andalucía
Khan, Aun N. [0000-0003-2620-4493]
Moreno-Ramírez, Luis M. [0000-0003-1937-8663]
Garcia-Garcia, F. Javier [0000-0001-7336-273X]
Varela, María [0000-0002-6582-7004]
Revuelta-Losada, Jorge [0000-0002-6796-4555]
Law, Jia Yan [0000-0002-1431-6773]
Franco, V. [0000-0003-3028-6815]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv All-d-metal Ni(Co)-Mn-Ti Heusler alloys
Magnetocaloric effect
Magnetostructural transition
topic All-d-metal Ni(Co)-Mn-Ti Heusler alloys
Magnetocaloric effect
Magnetostructural transition
description All-d-metal Ni(Co)-Mn-Ti Heusler alloys showing giant magnetocaloric properties at near room temperature are highly desirable for solid-state cooling applications. However, when exploring the literature, the reported magnetocaloric properties vary widely, hinting at the importance of the synthesis route. In this work, we select the Ni36Co14Mn35Ti15 composition, and systematically explore different synthesis routes such as arc melting, suction casting and induction melting, to investigate their effect on the magnetostructural transition and magnetocaloric properties. Among the studied samples, the induction melted sample shows the most abrupt martensitic transformation and the lowest thermal hysteresis: 4 K versus 8 K for arc melted and 17 K for suction casted. This abruptness leads to a remarkable isothermal entropy change of 23 J kg− 1 K− 1 for 1.5 T, along with the largest reversible response to date of 29 J kg− 1 K− 1 for 5 T, as compared to the reported magnetocaloric materials undergoing magnetostructural transition. The quantitative analysis of the elemental maps for the studied alloy series reveals that the larger homogeneity in the Ti distribution achieved by induction melting, when compared to the arc melted and suction casted counterparts, should be responsible for the sharpness of phase transformation and the low thermal hysteresis observed.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026
2026
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/10261/418837
https://api.elsevier.com/content/abstract/scopus_id/105027463952
url http://hdl.handle.net/10261/418837
https://api.elsevier.com/content/abstract/scopus_id/105027463952
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105720RB-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-146047OB-I00
http://dx.doi.org/10.1016/j.jallcom.2026.186135
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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