Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloy

A new method that characterizes thermal properties during a first-order phase transition is described. The technique consists in exciting the sample by a series of constant frequency thermal pulses which one in every N pulses –N is a small number like four—being exceedingly large in amplitude. This...

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Autores: Romero Landa, Francisco Javier, Gallardo Cruz, María del Carmen, Martín Olalla, José María, del Cerro Gonzalez, Jaime
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/128919
Acceso en línea:https://hdl.handle.net/11441/128919
https://doi.org/10.1016/j.tca.2021.179053
Access Level:acceso abierto
Palabra clave:specific heat
enthalpy
latent heat
phase transition
heusler alloy
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spelling Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloyRomero Landa, Francisco JavierGallardo Cruz, María del CarmenMartín Olalla, José Maríadel Cerro Gonzalez, Jaimespecific heatenthalpylatent heatphase transitionheusler alloyA new method that characterizes thermal properties during a first-order phase transition is described. The technique consists in exciting the sample by a series of constant frequency thermal pulses which one in every N pulses –N is a small number like four—being exceedingly large in amplitude. This pulse induces phase transformation which is inhibited during the following smaller pulses due to thermal hysteresis. That way the specific heat capacity for a given mixture of phases can be determined. The results obtained are independent of experimental parameters like the rate and the amplitude of the pulses, unlike what happens in other calorimetric techniques. The method also provides the enthalpy excess by analysing the energy balance between the dissipated heat and the heat flowing during each pulse of measurement. The protocol is tested to analyse the phase transitions of a Heusler alloy Ni50.53Mn33.65In15.82. The paramagnetic-ferromagnetic transition for the austenite phase is continuous and the specific heat capacity shows a lambda anomaly. The martensitic phase transition shows a first-order character and the specific heat capacity follows a step-like behaviour. Previous article in issueElsevierFísica de la Materia CondensadaFQM-1302021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/128919https://doi.org/10.1016/j.tca.2021.179053reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésThermochimica Acta, 706, 179053.https://doi.org/10.1016/j.tca.2021.179053info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1289192026-06-17T12:51:07Z
dc.title.none.fl_str_mv Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloy
title Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloy
spellingShingle Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloy
Romero Landa, Francisco Javier
specific heat
enthalpy
latent heat
phase transition
heusler alloy
title_short Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloy
title_full Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloy
title_fullStr Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloy
title_full_unstemmed Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloy
title_sort Experimental method to determine specific heat capacity and transition enthalpy at a first-order phase transition: Fundamentals and application to a Ni-Mn-In Heusler alloy
dc.creator.none.fl_str_mv Romero Landa, Francisco Javier
Gallardo Cruz, María del Carmen
Martín Olalla, José María
del Cerro Gonzalez, Jaime
author Romero Landa, Francisco Javier
author_facet Romero Landa, Francisco Javier
Gallardo Cruz, María del Carmen
Martín Olalla, José María
del Cerro Gonzalez, Jaime
author_role author
author2 Gallardo Cruz, María del Carmen
Martín Olalla, José María
del Cerro Gonzalez, Jaime
author2_role author
author
author
dc.contributor.none.fl_str_mv Física de la Materia Condensada
FQM-130
dc.subject.none.fl_str_mv specific heat
enthalpy
latent heat
phase transition
heusler alloy
topic specific heat
enthalpy
latent heat
phase transition
heusler alloy
description A new method that characterizes thermal properties during a first-order phase transition is described. The technique consists in exciting the sample by a series of constant frequency thermal pulses which one in every N pulses –N is a small number like four—being exceedingly large in amplitude. This pulse induces phase transformation which is inhibited during the following smaller pulses due to thermal hysteresis. That way the specific heat capacity for a given mixture of phases can be determined. The results obtained are independent of experimental parameters like the rate and the amplitude of the pulses, unlike what happens in other calorimetric techniques. The method also provides the enthalpy excess by analysing the energy balance between the dissipated heat and the heat flowing during each pulse of measurement. The protocol is tested to analyse the phase transitions of a Heusler alloy Ni50.53Mn33.65In15.82. The paramagnetic-ferromagnetic transition for the austenite phase is continuous and the specific heat capacity shows a lambda anomaly. The martensitic phase transition shows a first-order character and the specific heat capacity follows a step-like behaviour. Previous article in issue
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/128919
https://doi.org/10.1016/j.tca.2021.179053
url https://hdl.handle.net/11441/128919
https://doi.org/10.1016/j.tca.2021.179053
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Thermochimica Acta, 706, 179053.
https://doi.org/10.1016/j.tca.2021.179053
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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