Large magnetic refrigerant capacity in Gd71Fe3Al 26 and Gd65Fe20Al1515 amorphous alloys

Q. Y. Dong; B. G. Shen; J. Chen; J. Shen; F. Wang; H. W. Zhang; J. R. Sun

doi:10.1063/1.3072631

Large magnetic refrigerant capacity in Gd₇₁Fe₃Al ₂₆ and Gd₆₅Fe₂₀Al15₁₅ amorphous alloys

Q. Y. Dong, B. G. Shen, J. Chen, J. Shen, F. Wang, H. W. Zhang, J. R. Sun

CAS - Institute of Physics

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Abstract

Magnetic entropy change and refrigerant capacity of Gd-based amorphous Gd₇₁Fe₃Al₂₆ and Gd₆₅Fe ₂₀Al15₁₅ alloys are investigated. The refrigerant capacities reach 750 and 726 J kg-1 for Gd₇₁Fe₃Al ₂₆ and Gd₆₅ Fe20Al15₁₅, respectively, which are much larger than those of all magnetocaloric materials ever reported. The peak values of magnetic entropy change under a field change of 0-5 T are 7.4 J kg-1 K-1 at 117.5 K and 5.8 J kg-1 K-1 at 182.5 K for Gd₇₁Fe ₃Al₂₆ and Gd₆₅ Fe20Al15₁₅, respectively. A very large refrigerant capacity and a considerable magnetic entropy change jointly make them attractive candidates for magnetic refrigerant.

Original language	English
Article number	053908
Journal	Journal of Applied Physics
Volume	105
Issue number	5
DOIs	https://doi.org/10.1063/1.3072631
Publication status	Published - 2009
Externally published	Yes

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abstract = "Magnetic entropy change and refrigerant capacity of Gd-based amorphous Gd71Fe3Al26 and Gd65Fe 20Al1515 alloys are investigated. The refrigerant capacities reach 750 and 726 J kg-1 for Gd71Fe3Al 26 and Gd65 Fe20Al1515, respectively, which are much larger than those of all magnetocaloric materials ever reported. The peak values of magnetic entropy change under a field change of 0-5 T are 7.4 J kg-1 K-1 at 117.5 K and 5.8 J kg-1 K-1 at 182.5 K for Gd71Fe 3Al26 and Gd65 Fe20Al1515, respectively. A very large refrigerant capacity and a considerable magnetic entropy change jointly make them attractive candidates for magnetic refrigerant.",

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T1 - Large magnetic refrigerant capacity in Gd71Fe3Al 26 and Gd65Fe20Al1515 amorphous alloys

AU - Dong, Q. Y.

AU - Shen, B. G.

AU - Chen, J.

AU - Shen, J.

AU - Wang, F.

AU - Zhang, H. W.

AU - Sun, J. R.

PY - 2009

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N2 - Magnetic entropy change and refrigerant capacity of Gd-based amorphous Gd71Fe3Al26 and Gd65Fe 20Al1515 alloys are investigated. The refrigerant capacities reach 750 and 726 J kg-1 for Gd71Fe3Al 26 and Gd65 Fe20Al1515, respectively, which are much larger than those of all magnetocaloric materials ever reported. The peak values of magnetic entropy change under a field change of 0-5 T are 7.4 J kg-1 K-1 at 117.5 K and 5.8 J kg-1 K-1 at 182.5 K for Gd71Fe 3Al26 and Gd65 Fe20Al1515, respectively. A very large refrigerant capacity and a considerable magnetic entropy change jointly make them attractive candidates for magnetic refrigerant.

AB - Magnetic entropy change and refrigerant capacity of Gd-based amorphous Gd71Fe3Al26 and Gd65Fe 20Al1515 alloys are investigated. The refrigerant capacities reach 750 and 726 J kg-1 for Gd71Fe3Al 26 and Gd65 Fe20Al1515, respectively, which are much larger than those of all magnetocaloric materials ever reported. The peak values of magnetic entropy change under a field change of 0-5 T are 7.4 J kg-1 K-1 at 117.5 K and 5.8 J kg-1 K-1 at 182.5 K for Gd71Fe 3Al26 and Gd65 Fe20Al1515, respectively. A very large refrigerant capacity and a considerable magnetic entropy change jointly make them attractive candidates for magnetic refrigerant.

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Large magnetic refrigerant capacity in Gd₇₁Fe₃Al ₂₆ and Gd₆₅Fe₂₀Al15₁₅ amorphous alloys

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