中国物理B ›› 2020, Vol. 29 ›› Issue (5): 56401-056401.doi: 10.1088/1674-1056/ab7da8

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Effect of Ni substitution on the formability and magnetic properties of Gd50Co50 amorphous alloy

Ben-Zheng Tang(唐本镇), Xiao-Ping Liu(刘晓萍), Dong-Mei Li(李冬梅), Peng Yu(余鹏), Lei Xia(夏雷)   

  1. 1 Chongqing Key Laboratory of Photo-Electric Functional Materials, College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, China;
    2 Laboratory for Microstructure&Institute of Materials, Shanghai University, Shanghai 200072, China
  • 收稿日期:2020-02-10 修回日期:2020-02-25 出版日期:2020-05-05 发布日期:2020-05-05
  • 通讯作者: Peng Yu E-mail:pengyu@cqnu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51671119 and 51871139), the Chongqing Research Program of Basic Research and Frontier Technology, China (Grant No. cstc2018jcyjAX0329 and cstc2018jcyjAX0444), and the Key Project of Science and Technology Research Program of Chongqing Education Commission of China (Grant No. KJZD-K201900501).

Effect of Ni substitution on the formability and magnetic properties of Gd50Co50 amorphous alloy

Ben-Zheng Tang(唐本镇)1,2, Xiao-Ping Liu(刘晓萍)1, Dong-Mei Li(李冬梅)1, Peng Yu(余鹏)1, Lei Xia(夏雷)2   

  1. 1 Chongqing Key Laboratory of Photo-Electric Functional Materials, College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, China;
    2 Laboratory for Microstructure&Institute of Materials, Shanghai University, Shanghai 200072, China
  • Received:2020-02-10 Revised:2020-02-25 Online:2020-05-05 Published:2020-05-05
  • Contact: Peng Yu E-mail:pengyu@cqnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51671119 and 51871139), the Chongqing Research Program of Basic Research and Frontier Technology, China (Grant No. cstc2018jcyjAX0329 and cstc2018jcyjAX0444), and the Key Project of Science and Technology Research Program of Chongqing Education Commission of China (Grant No. KJZD-K201900501).

摘要: A small amount of Ni was added into the binary Gd50Co50 amorphous alloy to replace Gd in order to obtain ternary Co50Gd50-xNx (x= 1, 2, and 3) amorphous alloys. Compared to the binary Gd50Co50 amorphous alloy, the Co50Gd50-xNx amorphous alloys show an enhanced Curie temperature (TC) with a weakened formability. The maximum magnetic entropy change (-ΔSmpeak) of the Co50Gd50-xNx amorphous alloys is found to decrease with the increasing TC. The adiabatic temperature rise (ΔTad) of the Co50Gd47Ni3 amorphous alloy is superior to that of the Fe-based metallic glasses at room temperature. The variation of the TC and -ΔSmpeak of the Gd50Co50 amorphous alloy with Ni addition, and the mechanism involved, were discussed.

关键词: amorphous alloy, glass forming ability, magnetocaloric effect, adiabatic temperature rise

Abstract: A small amount of Ni was added into the binary Gd50Co50 amorphous alloy to replace Gd in order to obtain ternary Co50Gd50-xNx (x= 1, 2, and 3) amorphous alloys. Compared to the binary Gd50Co50 amorphous alloy, the Co50Gd50-xNx amorphous alloys show an enhanced Curie temperature (TC) with a weakened formability. The maximum magnetic entropy change (-ΔSmpeak) of the Co50Gd50-xNx amorphous alloys is found to decrease with the increasing TC. The adiabatic temperature rise (ΔTad) of the Co50Gd47Ni3 amorphous alloy is superior to that of the Fe-based metallic glasses at room temperature. The variation of the TC and -ΔSmpeak of the Gd50Co50 amorphous alloy with Ni addition, and the mechanism involved, were discussed.

Key words: amorphous alloy, glass forming ability, magnetocaloric effect, adiabatic temperature rise

中图分类号:  (Metallic glasses)

  • 64.70.pe
71.23.Cq (Amorphous semiconductors, metallic glasses, glasses) 75.30.Sg (Magnetocaloric effect, magnetic cooling)