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Chin. Phys. B, 2020, Vol. 29(5): 056401    DOI: 10.1088/1674-1056/ab7da8
CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES Prev   Next  

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 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
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.
Keywords:  amorphous alloy      glass forming ability      magnetocaloric effect      adiabatic temperature rise  
Received:  10 February 2020      Revised:  25 February 2020      Accepted manuscript online: 
PACS:  64.70.pe (Metallic glasses)  
  71.23.Cq (Amorphous semiconductors, metallic glasses, glasses)  
  75.30.Sg (Magnetocaloric effect, magnetic cooling)  
Fund: 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).
Corresponding Authors:  Peng Yu     E-mail:  pengyu@cqnu.edu.cn

Cite this article: 

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) Effect of Ni substitution on the formability and magnetic properties of Gd50Co50 amorphous alloy 2020 Chin. Phys. B 29 056401

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