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Magnetocaloric effect in ErNi2 melt-spun ribbons
JOSE LUIS SANCHEZ LLAMAZARES
Pablos Jesús Ibarra Gaytán
CESAR FIDEL SANCHEZ VALDES
David Ríos Jara
Pablo Álvarez Alonso
Acceso Abierto
Atribución-NoComercial-SinDerivadas
https://doi.org/10.1016/j.jre.2019.07.011
ErNi2
Laves phase
Melt-spun ribbons
Magnetic entropy change
Adiabatic temperature change
Rare Earths
"ErNi2 ribbons were produced by rapid solidification using the melt spinning technique. Their structural, magnetic and magnetocaloric properties in the as-solidified state were studied by X-ray diffraction, scanning electron microscopy, magnetization and specific heat measurements. Samples are single phase with the MgCu2-type crystal structure, a Curie temperature TC of 6.8 K and a saturation magnetization at 2 K and 5 T of 124.0 A?m2/kg. For a magnetic field change ?0?H of 5 T (2 T) ribbons show a maximum magnetic entropy change |?SMpeak| of 24.1 (16.9) J/(kg?K), and an adiabatic temperature change ?Tadmax of 8.1 (4.4) K; this is similar to the previously reported literature for bulk alloys that were processed through conventional melting techniques followed by prolonged thermal annealing. In addition, the samples also show slightly wider ?SM(T) curves with respect to bulk alloys leading to a larger refrigerant capacity."
Elsevier
2019
Artículo
J.L. Sánchez Llamazares, P. Ibarra-Gaytán, C.F. Sánchez Valdés, D. Ríos-Jara, P. Álvarez-Alonso, Magnetocaloric effect in ErNi2 melt-spun ribbons, Journal of Rare Earths, 2019.
QUÍMICA
Versión publicada
publishedVersion - Versión publicada
Aparece en las colecciones: Publicaciones Científicas Nanociencias y Materiales

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