Effect of Minor Co Substitution for Ni on the Glass Forming Ability and Magnetic Properties of Gd_(55)Al_(20)Ni_(25) Bulk Metallic Glass  

作　　者：WANG Peng CHAN Kang-Cheung LU Shuang TANG Mei-Bo XIA Lei 王鹏;陈镜昌;陆双;汤美波;夏雷(Laboratory for Microstructure,Shanghai University,Shanghai 200072;Department of Industrial and Systems Engineering,The Hong Kong Polytechnic University,Hung Hom,Hong Kong;Key Laboratory of Transparent and Opto-functional Inorganic Materials,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050)

机构地区：[1]Laboratory for Microstructure,Shanghai University,Shanghai 200072 [2]Department of Industrial and Systems Engineering,The Hong Kong Polytechnic University,Hung Hom,Hong Kong [3]Key Laboratory of Transparent and Opto-functional Inorganic Materials,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050

出　　处：《Chinese Physics Letters》2012年第9期129-132,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 No 51171100;the Hong Kong Polytechnic University under Project No PolyU G-U721.

摘　　要：Element substitution is usually used to improve the glass forming ability(GFA)and magnetic properties of alloys.We obtain Gd_(55)Al_(20)Ni_(20)Co_(5) bulk metallic glass(BMG)by minor Co substitution for Ni in the Gd_(55)Al_(20)Ni_(25) glass-forming alloy.The Gd_(55)Al_(20)Ni_(20)Co_(5) BMG exhibits a better GFA and magnetocaloric effect(MCE)than the Gd_(55)Al_(20)Ni_(25) BMG.The mechanism for the enhanced magnetic entropy change and refrigeration capacity of the Gd_(55)Al_(20)Ni_(20)Co_(5) BMG is investigated.

关 键 词：alloy. SUBSTITUTION glass 

分 类 号：TG1[金属学及工艺—金属学]