Critical behavior, magnetic and magnetocaloric properties of meltspun Ni50Mn35Sn15 ribbons
dc.contributor.author
dc.date.accessioned
2018-10-17T08:15:32Z
dc.date.available
2018-10-17T08:15:32Z
dc.date.issued
2018-02-25
dc.identifier.issn
0925-8388
dc.identifier.uri
dc.description.abstract
Microstructure, structural and magnetic phase transitions of the melt spun Ni50Mn35Sn15ribbons have been examined by means of scanning electron microscopy, X-ray diffraction, differential scanning calorimetry and magnetic measurements. The melt spun ribbons exhibit a single phase cubic L21austenite structure at room temperature with a space group Fm−3m, and lattice parameter a = 5.956 Å. The DSC results reveal the first order reverse and forward martensitic transition (Ms= 147.4 K, Mf= 133.7 K, As= 155 K and Af= 171 K) with a thermal hysteresis of about 21.3 K around the martensitic transition between heating and cooling. The thermomagnetic measurements show that the melt spun ribbons undergo a second order magnetic transition at a Curie temperature TC= 310 K and a first order martensitic transition at TM= 160 K. The critical behavior associated with the magnetic phase transition has been investigated through the isothermal magnetization measurements around TC. The critical exponents have been estimated by several methods such as the modified Arrott plots, Kouvel-Fisher method and critical isothermal analysis. The critical exponents values β=0.456, γ=0.88 and δ=2.929 are close to those predicted from the mean field model revealing a dominated long-range order of magnetic interactions. For an applied magnetic field of 5 T, the maximum magnetic entropy change (ΔSMmax) and the relative cooling power (RCP) values around TCare of about 2.105 J/kg.K and 132.5 J/kg, respectively. The melt-spun Ni50Mn35Sn15alloy is a good candidate for magnetic refrigeration near room temperature
dc.description.sponsorship
This work has been supported by the Algerian Ministère de l’Enseignement Supérieur et de la Recherche Scientifique, the PHC-Maghreb 15 MAG07 program, the Spanish MINECO projects MAT2013-47231-C2-2-P and MAT2016-75967-P and the Erasmus+KA107 STA 2015-2017 program
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
info:eu-repo/grantAgreement/MINECO//MAT2013-47231-C2-2-P/ES/NUEVOS MATERIALES (MICRO-NANO ESTRUCTURADOS) PARA DISPOSITIVOS DE EXTRACCION Y CESION DE CALOR, ACTUADORES, SENSORES Y MEMORIAS MAGNETICAS/
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/MAT2016-75967-P/ES/ALEACIONES CON MEMORIA DE FORMA ACTIVADA POR CAMPO MAGNÉTICO EN MICROESCALA/
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1016/j.jallcom.2017.11.277
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© Journal of Alloys and Compounds, 2018, vol. 735, p. 1662-1672
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Articles publicats (D-F)
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Tots els drets reservats
dc.subject
dc.title
Critical behavior, magnetic and magnetocaloric properties of meltspun Ni50Mn35Sn15 ribbons
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
027985
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
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dc.relation.ProjectAcronym