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dc.creatorRomero Landa, Francisco Javieres
dc.creatorMartín Olalla, José Maríaes
dc.creatorBlázquez Gámez, Javier Sebastiánes
dc.creatorGallardo Cruz, María del Carmenes
dc.creatorSoto-Parra, Danieles
dc.creatorVives, Eduardes
dc.creatorPlanes, Antonies
dc.date.accessioned2021-08-09T11:33:30Z
dc.date.available2021-08-09T11:33:30Z
dc.date.issued2021-12-20
dc.identifier.citationRomero Landa, F.J., Martín Olalla, J.M., Blázquez Gámez, J.S., Gallardo Cruz, M.d.C., Soto-Parra, D., Vives, E. y Planes, A. (2021). Thermo-magnetic characterization of phase transitions in a Ni-Mn-In metamagnetic shape memory alloy. Journal of Alloys and Compounds, 887, 161395.
dc.identifier.issn0925-8388es
dc.identifier.issn1873-4669es
dc.identifier.urihttps://hdl.handle.net/11441/116684
dc.description.abstractThe partially overlapped ferroelastic/martensitic and para-ferromagnetic phase transitions of a Ni50.53Mn33.65In15.82 metamagnetic shape memory alloy have been studied from calorimetric, magnetic and acoustic emission measurement. We have taken advantage of the existence of thermal hysteresis of the first order ferroelastic/martensitic phase transition (~2.5 K) to discriminate the latent heat contribution Delta=H 7.21(15)kJ/kg and the specific heat contribution Delta H_c =216(1)J/kg to the total excess enthalpy of the phase transition. The specific heat was found to follow a step-like behavior at this phase transition. The intermittent dynamics of the ferroelastic/martensitic transition has been characterized as a series of avalanches detected both from acoustic emission and calorimetric measurements. The energy distribution of these avalanche events was found to follow a power law with a characteristic energy exponent 2 which is in agreement with the expected value for a system undergoing a symmetry change from cubic to monoclinic. Finally, the critical behavior of the para-ferromagnetic austenite phase transition that takes place at ~311 K has been studied from the behavior of the specific heat. A critical exponent 0.09 has been obtained, which has been shown to be in agreement with previous values reported for Ni-Mn-Ga alloys but different from the critical divergence reported for pure Ni.es
dc.description.sponsorshipEuropean FEDER US-1260179es
dc.description.sponsorshipEuropean FEDER P18-RT-746es
dc.description.sponsorshipCICYT MAT2016-75823-Res
dc.formatapplication/pdfes
dc.format.extent8 p.es
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofJournal of Alloys and Compounds, 887, 161395.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectmetals and alloyses
dc.subjectheat capacityes
dc.subjectentropyes
dc.subjectkineticses
dc.subjectmagnetizationes
dc.titleThermo-magnetic characterization of phase transitions in a Ni-Mn-In metamagnetic shape memory alloyes
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física de la Materia Condensadaes
dc.relation.projectIDUS-1260179es
dc.relation.projectIDP18-RT-746es
dc.relation.projectIDMAT2016-75823-Res
dc.relation.publisherversionhttps://doi.org/10.1016/j.jallcom.2021.161395es
dc.identifier.doi10.1016/j.jallcom.2021.161395es
dc.contributor.groupFQM-130es
idus.validador.notaArtículo publicado en Golden Open Access según convenio de la Universidad de Sevilla con Elsevier.es
dc.journaltitleJournal of Alloys and Compoundses
dc.publication.volumen887es
dc.publication.initialPage161395es
dc.contributor.funderEuropean Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)es
dc.contributor.funderComisión Interministerial de Ciencia y Tecnología (CICYT). Españaes

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