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Refrigerant capacity of austenite in as-quenched and annealed Ni51.1Mn31.2In17.7 melt spun ribbons

dc.contributor.authorSánchez Llamazares, José Luis
dc.contributor.authorFlores Zúñiga, Horacio
dc.contributor.authorSánchez Valdés, Cesar Fidel
dc.contributor.authorRoss, Caroline A.
dc.contributor.authorGarcia, Carlos
dc.contributor.editorAmerican Institute of Physics
dc.date.accessioned2018-04-03T19:23:07Z
dc.date.available2018-04-03T19:23:07Z
dc.date.issued2012-04
dc.identifier.citationJ. L. Sánchez Llamazares et al., Journal of Applied Physics 111, 07A932 (2012); https://doi.org/10.1063/1.3676606
dc.identifier.urihttp://hdl.handle.net/11627/3766
dc.description.abstract"The thermal dependence of the magnetic entropy change (Delta S-M(T)) and refrigerant capacity (RC) of austenite in as-quenched ribbons of chemical composition Ni51.1Mn31.2In17.7 produced by melt spinning at a high cooling rate of 48 ms(-1) is reported. The effect of annealing at 1073 K on the structure and the magnetic properties was studied. The as-quenched sample is a single-phase austenite that presents a B2 ordered structure. The annealing on the melt spun samples produced a L2(1)-type ordered structure. Austenite is characterized by a broad Delta S-M(T) curve that, for a field change of 5.0 T, exhibits a full-width at half-maximum delta T-FMHW of 107 K, a peak value of the magnetic entropy change Delta S-M(peak) of -3.1 Jkg(-1) K-1, and RC = 345 Jkg(-1). Although annealed samples show larger Delta S-M(peak) values the narrower Delta S-M(T) curves leads to a reduction in RC. Thus, the as-quenched sample shows a higher efficiency for a refrigerant cycle."
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.classificationFÍSICA
dc.titleRefrigerant capacity of austenite in as-quenched and annealed Ni51.1Mn31.2In17.7 melt spun ribbons
dc.typearticle
dc.identifier.doihttps://doi.org/10.1063/1.3676606
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional