Abstract
The crystal structure and phase transition in Heusler alloys were investigated by means of structure analysis and magnetism
measurements. The result shows that the Ni43Mn42Co4Sn11 alloy have a large magnetic entropy change of 40.0 J/kg K at the
temperature about 255 K under a magnetic field changing from 0 to 30 kOe. The refrigerant capacity values of the first-order
and second-order phase transition under an applied field changing from 0 to 30 kOe are also discussed. The different
external magnetic field influence on the phase transition temperature of about 3-4 K, ranged to the low temperature..
Keywords
Ni–Mn–Sn, Heusler alloy, Martensitic transition, Magnetocaloric effect.
Citation
FENGHUA CHEN, CHANGWEI GONG, YANPING GUO, MINGANG ZHANG, YUESHENG CHAI, JIAN WEI, Martensitic transformation and magnetocaloric effect in Ni43Mn42Co4Sn11 alloy, Optoelectronics and Advanced Materials - Rapid Communications, 8, 1-2, January-February 2014, pp.26-29 (2014).
Submitted at: Feb. 4, 2013
Accepted at: Jan. 22, 2014