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

作　　者：Ben-Zheng Tang Xiao-Ping Liu Dong-Mei Li Peng Yu Lei Xia 唐本镇;刘晓萍;李冬梅;余鹏;夏雷(Chongqing Key Laboratory of Photo-Electric Functional Materials,College of Physics and Electronic Engineering,Chongqing Normal University,Chongqing 401331,China;Laboratory for Microstructure&Institute of Materials,Shanghai University,Shanghai 200072,China)

机构地区：[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

出　　处：《Chinese Physics B》2020年第5期424-428,共5页中国物理B（英文版）

基　　金：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);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(-Δ^Smpeak)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-Δ^Smpeak 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 

分 类 号：O469[理学—凝聚态物理]