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Martensitic transformation and magnetocaloric properties in Ni40.0Mn47.3Sn10.9Sb1.8 ribbons
Xuan Haicheng * #,Zhang Tuo,Wu Yafei,Xu Yuekui,Zhang Yongqing,Li Hui,Han Peide
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
*Correspondence author
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Funding: This work is supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China （No.Grant No. 20131402110003, 20131402120004）
Opened online:18 August 2016
Accepted by: none
Citation: Xuan Haicheng,Zhang Tuo,Wu Yafei.Martensitic transformation and magnetocaloric properties in Ni40.0Mn47.3Sn10.9Sb1.8 ribbons[OL]. [18 August 2016] http://en.paper.edu.cn/en_releasepaper/content/4701262
 
 
The Ni40.0Mn47.3Sn10.9Sb1.8 ribbons were prepared by melt-spun method. The martensitic transformation (MT) and magnetocaloric effect in melt-spun and annealed Ni40.0Mn47.3Sn10.9Sb1.8 ribbons were investigated. After the heat treatment, the MT temperature increases obviously in the annealed ribbons. The large values of magnetic entropy changes and the effective refrigerant capacity around the MT and Curie temperature of the austenite were found to be 30.9 and -2.2 J/kg K, 70.6 and 132.6 J/kg, respectively, under the field change of 30 kOe for the annealed ribbons. The annealing effect on the MT and magnetocaloric effect, together with the origin of the large magnetic entropy changes, has been discussed in this paper.
Keywords:Ferromagnetic shape memory alloys; Martensitic transformation; Magnetocaloric effect; Annealing; Ni-Mn-Sn-Sb ribbons
 
 
 

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