Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys

Martensitic transition and magnetic response of Ni50−x Pdx,y Mn36 Sn14−y (x = 0, 1, 2 and y = 0, 1) Heusler alloys were analysed. The crystalline structure of each composition was solved by X-ray diffraction pattern fitting. For x = 1 and 2, the L21 austenite structure is formed and, for y = 1, the...

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Autores: Wederni, Asma, Ipatov, Mihail, Pineda, Eloi, Escoda, Lluisa, González Estévez, Julián María, Khitouni, Mohamed, Suñol, Joan Josep
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/49675
Acceso en línea:http://hdl.handle.net/10810/49675
Access Level:acceso abierto
Palabra clave:magneto-structural transition
Heusler alloys
martensitic transition
magnetocaloric effect
entropic change
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spelling Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd AlloysWederni, AsmaIpatov, MihailPineda, EloiEscoda, LluisaGonzález Estévez, Julián MaríaKhitouni, MohamedSuñol, Joan Josepmagneto-structural transitionHeusler alloysmartensitic transitionmagnetocaloric effectentropic changeMartensitic transition and magnetic response of Ni50−x Pdx,y Mn36 Sn14−y (x = 0, 1, 2 and y = 0, 1) Heusler alloys were analysed. The crystalline structure of each composition was solved by X-ray diffraction pattern fitting. For x = 1 and 2, the L21 austenite structure is formed and, for y = 1, the crystallographic phase is a modulated martensitic structure. From differential scanning calorimetry scans, we determine characteristic transformation temperatures and the entropy/enthalpy changes. The temperatures of the structural transformation increase with the addition of Pd to replace Ni or Sn, whereas the austenitic Curie temperature remains almost unvarying. In addition, the magneto-structural transition, investigated by magnetic measurements, is adjusted by suitable Pd doping in the alloys. The peak value of the magnetic entropy changes reached 4.5 J/(kg K) for Ni50Mn36Sn13Pd1 (external field: 50 kOe).This research was funded by MINECO grant MAT2016-75967-P and UdG grant PONT2020/01.MDPI2021202120202020info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/49675reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MINECO/CTQ2015-67870-P/info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/oai:addi.ehu.eus:10810/496752026-06-18T09:23:17Z
dc.title.none.fl_str_mv Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys
title Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys
spellingShingle Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys
Wederni, Asma
magneto-structural transition
Heusler alloys
martensitic transition
magnetocaloric effect
entropic change
title_short Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys
title_full Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys
title_fullStr Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys
title_full_unstemmed Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys
title_sort Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys
dc.creator.none.fl_str_mv Wederni, Asma
Ipatov, Mihail
Pineda, Eloi
Escoda, Lluisa
González Estévez, Julián María
Khitouni, Mohamed
Suñol, Joan Josep
author Wederni, Asma
author_facet Wederni, Asma
Ipatov, Mihail
Pineda, Eloi
Escoda, Lluisa
González Estévez, Julián María
Khitouni, Mohamed
Suñol, Joan Josep
author_role author
author2 Ipatov, Mihail
Pineda, Eloi
Escoda, Lluisa
González Estévez, Julián María
Khitouni, Mohamed
Suñol, Joan Josep
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv magneto-structural transition
Heusler alloys
martensitic transition
magnetocaloric effect
entropic change
topic magneto-structural transition
Heusler alloys
martensitic transition
magnetocaloric effect
entropic change
description Martensitic transition and magnetic response of Ni50−x Pdx,y Mn36 Sn14−y (x = 0, 1, 2 and y = 0, 1) Heusler alloys were analysed. The crystalline structure of each composition was solved by X-ray diffraction pattern fitting. For x = 1 and 2, the L21 austenite structure is formed and, for y = 1, the crystallographic phase is a modulated martensitic structure. From differential scanning calorimetry scans, we determine characteristic transformation temperatures and the entropy/enthalpy changes. The temperatures of the structural transformation increase with the addition of Pd to replace Ni or Sn, whereas the austenitic Curie temperature remains almost unvarying. In addition, the magneto-structural transition, investigated by magnetic measurements, is adjusted by suitable Pd doping in the alloys. The peak value of the magnetic entropy changes reached 4.5 J/(kg K) for Ni50Mn36Sn13Pd1 (external field: 50 kOe).
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/49675
url http://hdl.handle.net/10810/49675
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO/CTQ2015-67870-P/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es/
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:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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