Large low-field magnetocaloric effect in directionally solidified Ni55Mn18+xGa27−x (x = 0, 1, 2) alloys
Journal of Magnetism and Magnetic Materials(2018)
Abstract
•Textured polycrystalline Ni-Mn-Ga alloys were prepared by directional solidification.•Large ΔTad up to 1.57K were achieved under the low field change of 1.5T.•Enhanced magnetostructural coupling and strong texture result in large MCE.
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Key words
Ni-Mn-Ga alloys,Martensitic transformation,Magnetocaloric effect,Magnetostructural coupling
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