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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/7866

Title: The role of boron on the magneto-caloric effect of FeZrB metallic glasses
Author(s): Álvarez Alonso, Pablo
Gorría Korres, Pedro
Sánchez Marcos, Jorge
Fernández Barquín, Luis
Blanco Rodríguez, Jesús Ángel
Keywords: Magnetic Intermetallics
Magnetic Properties
Ambient-Temperature Uses
Magnetic Applications
Issue date: 2010
Publisher: Elsevier
Publisher version: http://dx.doi.org/10.1016/j.intermet.2010.07.018
Citation: Intermetallics, 18(12), p. 2464-2467 (2010); doi:10.1016/j.intermet.2010.07.018
Format extent: p. 2464-2467
Abstract: Fe-rich FeZrB metallic glasses exhibit magneto-caloric effect (MCE) around room temperature. Amorphous ribbons of two different compositions, Fe91Zr7B2 and Fe88Zr8B4, with respective Curie temperature values of 230 and 285 K have been studied. Although the maximum magnetic entropy change is relatively moderate (vertical bar Delta S-M vertical bar(max) similar to 3 J K-1 Kg(-1) under an applied magnetic field change from 0 to 50 kOe), the MCE spreads over a broad temperature interval (Delta T similar to 200 K), giving rise to a large refrigerant capacity loss (RC similar to 435 J kg(-1)) without any hysteresis. The Curie temperature can be easily tuned between 200 and 350 K by changing the boron content. Therefore, the MCE can be controlled over a wide temperature interval, thus making these amorphous alloys promising candidates for magnetic refrigeration near room temperature.
URI: http://www.sciencedirect.com/science/article/pii/S0966979510003225
ISSN: 1879-0216
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