The influence of quench atomic disorder on the magnetocaloric properties of Ni-Co-Mn-In alloys

被引：13
|
作者：
Singh, Sandeep [1 ]
Glavatskyy, Illya [2 ]
Biswas, C. [1 ]
机构：
[1] SN Bose Natl Ctr Basic Sci, Dept Condensed Matter Phys & Mat Sci, Kolkata 700098, W Bengal, India
[2] Helmholtz Ctr Berlin Mat & Energy, Inst Complex Magnet Mat, D-14109 Berlin, Germany
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 601卷
关键词：
Heusler alloys; Martensitic transition; Quench atomic disorder; Magnetocaloric effect; Refrigeration capacity; SHAPE-MEMORY ALLOYS; HEUSLER ALLOYS; PHASE-TRANSFORMATION; CHEMICAL ORDER; COBALT;
D O I：
10.1016/j.jallcom.2014.02.069
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The magnetocaloric effect in Ni-Co-Mn-In alloys is studied at low magnetic field, across the first order magnetostructural transition. The Co doping at Ni site induces the large magnetic entropy change (Delta S-m) above room temperature. The large Delta S-m of 11 J/ Kg K has been observed for disordered Ni1.81Co(0).22Mn1.46In0.51 alloy at 337 K at an applied field of 1.5 Tesla. The influence of quench atomic disorder on the magnetocaloric properties of Ni-Co-Mn-In alloys has been studied. The atomic disorder significantly increases the peak value of DSm and decreases the peak width. The refrigeration capacity (RC) is almost unchanged with atomic disorder.
引用
收藏
页码：108 / 111
页数：4
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