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Magnetocaloric effect in Ni-Mn-X (X= Ga, In) Heusler alloys.

Author(s) : BUCHELNIKOV V., TASKAEV S., DROBOSYUK M., et al.

Summary

The positive magnetocaloric effect (MCE) in Ni(2+x)Mn(1-x)Ga (x= 0.33, 0.36, 0.39), Ni(50.2)Mn(39.8)In(10), Ni(49.4)Mn(41.4)In(9.2), Ni(48)Mn(43.3)In(8.7) Heusler alloys close the Curie points and the negative and positive MCE near the metamagnetostructural (MMS) transition and the Curie point in Ni(45)Co(5)Mn(36.5)In(13.5) Heusler alloy has been measured by a direct method. For the magnetic field change= 2 T, the maximal adiabatic temperature change at the Curie point in Ni(2+x)Mn(1-x)Ga alloys is larger than 0.6 K and the maximal at the Curie point in Ni(50.2)Mn(39.8)In(10) is equal to 1.15 K at 318 K. For Ni(45)Co(5)Mn(36.5)In(13.5) alloy, the maximal value of adiabatic temperature change= 1.68 K (for the same magnetic field change= 2T) is observed at the MMS phase transition temperature.

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Pages: 2010-4

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Details

  • Original title: Magnetocaloric effect in Ni-Mn-X (X= Ga, In) Heusler alloys.
  • Record ID : 2011-0163
  • Languages: English
  • Source: 4th International Conference on Magnetic Refrigeration at Room Temperature (Thermag IV). Proceedings: Baotou, China, August 23-27, 2010.
  • Publication date: 2010/08/23

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