Large Magneto-Caloric Effect in Ni–Co–Mn–In systems at room temperature

Large Magneto-Caloric Effect in Ni–Co–Mn–In systems at room temperature

Magneto-Caloric properties were studied both in Ni–Co–Mn–In alloys and single crystals. A large inverse Magneto-Caloric Effect at room temperature was observed in a Ni45Co5Mn37.5In12.5 single crystal. A large magnetic entropy change is found in such NiCo–Mn–In single crystal (ΔSm=30J/KgK) at 355 K a...

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Veröffentlicht in:Physics procedia 2010, Vol.10, p.120-124
Hauptverfasser: Bourgault, Daniel, Tillier, Jérémy, Courtois, Pierre, Chaud, Xavier, Caillault, Nathalie, Carbone, Laurent
Format: Artikel
Sprache:eng
Schlagworte:
Heusler single crystal
Magnetocaloric effect
Martensitic transformation
Physics
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Zusammenfassung:Magneto-Caloric properties were studied both in Ni–Co–Mn–In alloys and single crystals. A large inverse Magneto-Caloric Effect at room temperature was observed in a Ni45Co5Mn37.5In12.5 single crystal. A large magnetic entropy change is found in such NiCo–Mn–In single crystal (ΔSm=30J/KgK) at 355 K and under a magnetic field of 7 T during the first order magneto-structural transition. The net refrigerant capacity obtained higher than 270±25J/Kg for 7 T is very encouraging for magnetic refrigeration applications.
ISSN:1875-3892
1875-3892
DOI:10.1016/j.phpro.2010.11.086