1. Table-like magnetocaloric behavior and enhanced cooling efficiency of a Bi-constituent Gd alloy wire-based composite.
- Author
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Bao, Ying, Shen, Hongxian, Huang, Yongjiang, Xing, Dawei, Wang, Huan, Liu, Jingshun, Li, Haichao, Yin, Hangboce, Jiang, Sida, Sun, Jianfei, and Phan, Manh-Huong
- Subjects
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GADOLINIUM compounds , *MAGNETOCALORIC effects , *BISMUTH compounds , *METALLIC wire , *METALLIC composites - Abstract
A novel type of bi-constituent wire composite was obtained by combining melt-extracted Gd 50 Al 30 Co 20 and Gd 55 Al 20 Co 25 microwire components with Curie temperature ( T C ) of 86 K and 110 K, respectively. For a field change of 5 T, the wire composite possesses a table-like feature spanning a temperature interval of 30 K with value of ∼8.6 J kg −1 K −1 , and enhanced refrigerant capacity (RC) and relative cooling power (RCP) values of ∼680 J kg −1 and ∼863 J kg −1 , respectively. The experimental results agree well with those calculated by a simple bi-composition model, demonstrating the possibility of designing wire-based composites with desirable magnetocaloric effects (MCE) for active magnetic refrigeration. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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