| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1798731 | Journal of Magnetism and Magnetic Materials | 2015 | 4 Pages |
Abstract
This paper presents the structure, magnetic properties, and magnetocaloric effect of the polycrystalline compound GdNiAl2. Powder X-ray diffraction (XRD) measurement and Rietveld refinement revealed that GdNiAl2 alloy is CuMgAl2-type phase structure with about 1 wt% GdNi2Al3 secondary phase. Magnetic measurements suggest that the compound is ferromagnetic and undergoes a second-order phase transition near 28 K. The maximum value of magnetic entropy change reaches 16.0 J/kg K for an applied magnetic field change of 0-50 kOe and the relative cooling power was 6.4Ã102 J/kg. It is a promising candidate as a magnetocaloric material working near liquid hydrogen temperature (~20 K) exhibiting large relative cooling power.
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Authors
S.N. Dembele, Z. Ma, Y.F. Shang, H. Fu, E.A. Balfour, R.L. Hadimani, D.C. Jiles, B.H. Teng, Y. Luo,