典型文献
Heterogeneous GdTbDyCoAl high-entropy alloy with distinctive magnetocaloric effect induced by hydrogenation
文献摘要：
Developing novel magnetocaloric materials is of great significance for the applications of magnetic refrig-eration.In this study,we designed a heterogeneous rare-earth-based high-entropy alloy(HEA)compris-ing amorphous matrix,local crystal-like cluster and nanocrystalline dihydride with average size of 7.5 nm through isothermal hydrogenation.This heterogeneous structure can significantly tune the magnetocaloric effect of alloy.After hydrogenation,the predominant exchange interaction transforms from ferromagnetic to antiferromagnetic with the disappearance of spin-glass-like behavior,and a complete second-order magnetic transition is obtained.Compared with the Gd20Tb18Dy18Co20Al24 high-entropy metallic glass with a small number of nanocrystals,the maximum magnetic entropy change of the hydrogen-containing HEA is increased from 8.8 to 13.6 J kg-1 K-1 under applied magnetic field change of 5 T accompany-ing unobvious hysteresis and decreased magnetic transition temperature from 59 to 8 K,which is more promising as magnetic refrigerant at cryogenic temperature.This work provides a novel concept of de-signing heterogeneous structure in terms of special cluster and preferential nanocrystalline to modulate the properties of metallic glasses.
文献关键词：
中图分类号：
作者姓名：
Liliang Shao;Lin Xue;Qiang Luo;Kuibo Yin;Zirui Yuan;Mingyun Zhu;Tao Liang;Qiaoshi Zeng;Litao Sun;Baolong Shen
作者机构：
School of Materials Science and Engineering,Jiangsu Key Laboratory of Advanced Metallic Materials,Southeast University,Nanjing 211189,China;College of Mechanics and Materials,Hohai University,Nanjing 211100,China;SEU-FEI Nano-Pico Center,Key Laboratory of MEMS of Ministry of Education,School of Electronic Science and Engineering,Southeast University,Nanjing 210018,China;Center for High Pressure Science and Technology Advanced Research,Pudong,Shanghai 201203,China
文献出处：
引用格式：
[1]Liliang Shao;Lin Xue;Qiang Luo;Kuibo Yin;Zirui Yuan;Mingyun Zhu;Tao Liang;Qiaoshi Zeng;Litao Sun;Baolong Shen-.Heterogeneous GdTbDyCoAl high-entropy alloy with distinctive magnetocaloric effect induced by hydrogenation)[J].材料科学技术（英文版）,2022(14):147-156
A类：
GdTbDyCoAl,refrig,Gd20Tb18Dy18Co20Al24
B类：
Heterogeneous,high,entropy,alloy,distinctive,magnetocaloric,effect,induced,by,hydrogenation,Developing,novel,materials,great,significance,applications,eration,In,this,study,we,designed,heterogeneous,rare,earth,HEA,compris,amorphous,matrix,local,like,cluster,nanocrystalline,dihydride,average,size,through,isothermal,This,structure,significantly,tune,After,predominant,exchange,interaction,transforms,from,antiferromagnetic,disappearance,spin,behavior,complete,second,order,transition,obtained,Compared,metallic,small,number,nanocrystals,maximum,containing,increased,under,applied,field,accompany,unobvious,hysteresis,decreased,temperature,which,more,promising,refrigerant,cryogenic,work,provides,concept,signing,terms,special,preferential,modulate,properties,glasses
AB值：
0.570276
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