中国物理B ›› 2021, Vol. 30 ›› Issue (1): 17501-.doi: 10.1088/1674-1056/abc0d7

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  • 收稿日期:2020-06-03 修回日期:2020-10-03 接受日期:2020-10-14 出版日期:2020-12-17 发布日期:2020-12-17

Magnetic properties and promising cryogenic magneto-caloric performances of Gd20Ho20Tm20Cu20Ni20 amorphous ribbons

Yikun Zhang(张义坤)1,2,3,†, Bingbing Wu(吴兵兵)1,2,3, Dan Guo(郭丹)1,2,3, Jiang Wang(王江)1,2,3, and Zhongming Ren(任忠鸣)1,2,3   

  1. 1 State Key Laboratory of Advanced Special Steels, Shanghai University, Shanghai 200072, China; 2 Shanghai Key Laboratory of Advanced Ferrometallurgy, Shanghai University, Shanghai 200072, China; 3 School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
  • Received:2020-06-03 Revised:2020-10-03 Accepted:2020-10-14 Online:2020-12-17 Published:2020-12-17
  • Contact: †Corresponding author. E-mail: ykzhang@shu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 52071197), the Science and Technology Committee of Shanghai (Grant No. 19ZR1418300), and the Independent Research and Development Project of State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, Shanghai University (Grant No. SKLASS 2019-Z003), and the Science and Technology Commission of Shanghai Municipality (Grant No. 19DZ2270200)

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Abstract: The magnetic cooling utilizing magneto-caloric effect is recognized as promising energy efficiency and environmentally friendly technology. Here we report a systematical study on the microstructures, magnetic properties and cryogenic magneto-caloric performances of the Gd20Ho20Tm20Cu20Ni20 amorphous ribbons. It is found that the ribbons reveal a second-order phase transition and are accompanied by a table-shaped magneto-caloric effect. The calculated magnetic-entropy-change maximum |∆ S M|, temperature averaged entropy change (i.e., TEC(10)), and refrigerant capacity reach 13.9 J/kgK, 13.84 J/kgK and 740 J/kg with magnetic field change of 0-7 T, respectively, indicating that the present Gd20Ho20Tm20Cu20Ni20 amorphous ribbons are good candidates for magnetic cooling.

Key words: microstructure, magneto-caloric effect (MCE), amorphous ribbons, magnetic properties

中图分类号:  (Magnetocaloric effect, magnetic cooling)

  • 75.30.Sg
64.70.pe (Metallic glasses) 75.50.Kj (Amorphous and quasicrystalline magnetic materials)