Microstructure, Critical Behavior and Magnetocaloric Properties of Melt-Spun Ni51.82Mn32.37In15.81
dc.contributor.author
dc.date.accessioned
2022-12-14T12:51:07Z
dc.date.available
2022-12-14T12:51:07Z
dc.date.issued
2022-12-02
dc.identifier.uri
dc.description.abstract
Heusler alloy with an atomic composition of Ni51.82Mn32.37In15.81 was prepared by melt spinning from arc-melted ingots. X-ray diffraction, scanning electron microscopy and magnetic measurements were used to study the structural, microstructural and magnetic properties. The crystal structure consists of a mixture of B2 austenite (~50%) and 14M martensite (~50%). The alloy undergoes a second order magnetic transition at a Curie temperature of TAc=194.2 K. The hysteresis loop reveals the occurrence of exchange bias phenomenon at room temperature. The critical exponents β, γ and δ were estimated using modified Arrott plots, Kouvel–Fisher curves and critical isothermal analysis. The respective values are β=0.500±0.015, γ=1.282±0.055 and δ=3.003±0.002. The critical behaviour in ribbons is governed by the mean field model with a dominated long-range order of ferromagnetic interactions. The maximum entropy change, ΔSmaxM, for an applied magnetic field of 5 T reaches an absolute value of 0.92 J/kg·K. The experimental results of entropy changes are in good agreement with those calculated using Landau theory
dc.description.sponsorship
This work has been supported by the DGRSDT/Algerian Ministère de l'Enseignement Supérieur et de la Recherche Scientifique, Spanish MINECO project MAT2016-75967-P and the Erasmus+k107 STA program
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
MDPI (Multidisciplinary Digital Publishing Institute)
dc.relation
MAT2016-75967-P
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Reproducció digital del document publicat a: https://doi.org/10.3390/magnetochemistry8120179
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Magnetochemistry, 2022, vol. 8, núm. 12, p. 179
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Articles publicats (D-F)
dc.rights
Attribution 4.0 International
dc.rights.uri
dc.subject
dc.title
Microstructure, Critical Behavior and Magnetocaloric Properties of Melt-Spun Ni51.82Mn32.37In15.81
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.relation.projectID
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.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
035839
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.FundingProgramme
dc.relation.ProjectAcronym
dc.identifier.eissn
2312-7481