Enhanced refrigerant capacity and magnetic entropy flattening using a two-amorphous FeZrB(Cu) composite
Subject: |
Ciencia de Los Materiales |
Publication date: | 2011 |
Editorial: |
Institute of Physic (IOP Publishing) |
Publisher version: | http://dx.doi.org/10.1063/1.3665941 |
Citación: | Applied Physics Letter, 99(23), 232501 (2011); doi:10.1063/1.3665941 |
Abstract: |
The temperature dependence of the isothermal magnetic entropy change, {Delta}SM, and the magnetic field dependence of the refrigerant capacity, RC, have been investigated in a composite system xA+(1-x)B, based on Fe87Zr6B6Cu1 (A) and Fe90Zr8B2 (B) amorphous ribbons. Under a magnetic field change of 2 T the maximum improvement of the full-width at half maximum of {Delta}SM(T) curve (47 and 29 %) and the RC (18 and 23 %), in comparison with those of the individual alloys (A and B), is observed for x approx 0.5. Moreover, a flattening over 80 K in the {Delta}SM(T) curve around room temperature range is observed, which is a key feature for an Ericsson magnetic refrigeration cycle. |
DOI: | 10.1063/1.3665941 |
Patrocinado por: |
This work was funded by Spanish MICINN and FEDER program for financial support under MAT2008-06542-C04-03 research project. J.L.S.L. acknowledges the support received from Conacyt, Mexico, under the Project No. 156932 |
Id. Proyecto: |
MICINN/MAT2008-06542-C04-03 |
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