The magnetocaloric effect in (Dy,Tb)Co2 alloys

被引：0
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作者：
Gu, Kunming [1 ]
Li, Junqin [1 ]
Ao, Weiqin [1 ]
Jian, Yongxi [1 ]
Tang, Jiaoning [1 ]
机构：
[1] School of Materials, Shenzhen University, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen, 518060, China
来源：
Journal of Alloys and Compounds | 2007年 / 441卷 / 1-2期
关键词：
Series of TbxDy1-xCo2 alloys (x = 0.1; 0.3; 0.5; 0.7; 0.9) were prepared by arc-melting method. All the alloys were found to be the pure Laves phase; indicating the continuous solid (Dy; Tb)Co2 solution formed from DyCo2 and TbCo2. The maximal change of entropy ΔSM decreases from 8.86 to 2.64 J/kg K under magnetic field change of 0-1.5 T as Tb content increases from 0.1 to 0.9; due to the change of transition type from first-order to second-order. The results of Arrott plots and Inoue-Shimizu model confirmed the transition type changes from first-order to second-order occurs with Tb content x between 0.1 and 0.3. © 2006 Elsevier B.V. All rights reserved;
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页码：39 / 42
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