Magneto-Caloric Response of a Gd55Co25Al18Sn2 Bulk Metallic Glass  

作　　者：丁鼎 张一清 夏雷 

机构地区：[1]Laboratory for Microstructure,Institute of Materials,Shanghai University

出　　处：《Chinese Physics Letters》2015年第10期80-83,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 51171100 and 51271103

摘　　要：The magneto-caloric effect （MCE） of a Gd55Co25Al18Sn2 bulk metallic glass （BMG） is investigated. The Gd55Co25AllsSn2 as-cast rod prepared by a water-cooled copper mold suction casting method exhibits typi- cal amorphous characteristics. The maximum magnetic entropy change （--ASPmeak） and the magnetic refrigerant capacity （Re） of the BMG under a field of 5 T are about 9.32 J.kg-X.K 1 and 832 J.kg-1, respectively, both of which are larger than the values of the Gd55 Co25A120 BMG. The mechanism for the improved MCE by minor Sn addition is studied and the field dependence of - magneto-caloric behaviors of Gd55Co25Al18Sn2 BMG ASPmeak is investigated for a better understanding on theThe magneto-caloric effect （MCE） of a Gd55Co25Al18Sn2 bulk metallic glass （BMG） is investigated. The Gd55Co25AllsSn2 as-cast rod prepared by a water-cooled copper mold suction casting method exhibits typi- cal amorphous characteristics. The maximum magnetic entropy change （--ASPmeak） and the magnetic refrigerant capacity （Re） of the BMG under a field of 5 T are about 9.32 J.kg-X.K 1 and 832 J.kg-1, respectively, both of which are larger than the values of the Gd55 Co25A120 BMG. The mechanism for the improved MCE by minor Sn addition is studied and the field dependence of - magneto-caloric behaviors of Gd55Co25Al18Sn2 BMG ASPmeak is investigated for a better understanding on the

关 键 词：BMG CO Magneto-Caloric Response of a Gd Sn2 Bulk Metallic Glass AL 

分 类 号：TG139.8[一般工业技术—材料科学与工程] TB64[金属学及工艺—合金]