Magnetic properties and magnetocaloric effects in amorphous and crystalline Gd55Co35Ni10 ribbons

被引：0

作者：

ZHONG XiChun ^{[1
]}

TANG PengFei ^{[1
]}

GAO BeiBei ^{[1
]}

MIN JiXiong ^{[1
]}

LIU ZhongWu ^{[1
]}

ZHENG ZhiGang ^{[1
]}

ZENG DeChang ^{[1
]}

YU HongYa ^{[1
]}

QIU WanQi ^{[1
]}

机构：

[1] School of Materials Science and Engineering,South China University of Technology

来源：

Science China(Physics,Mechanics & Astronomy) | 2013年 / 06期

基金：

中央高校基本科研业务费专项资金资助;

关键词：

Gd55Co35Ni10; ribbon; magnetocaloric effect; magnetic refrigeration;

D O I：

暂无

中图分类号：

O482.5 [磁学性质];

学科分类号：

070205 ; 0805 ; 080502 ; 0809 ;

摘要：

The magnetic properties and magnetocaloric effects of amorphous and crystalline Gd55Co35Ni10 ribbons are investigated.A main phase with a Ho 12 Co 7-type monoclinic structure(space group P21/c) and a minor phase with a Ho4Co3-type hexagonal structure(space group P63/m) are obtained for crystalline ribbon after annealing.The amorphous ribbons order ferromagnetically and undergo a second-order transition at 192 K.For crystalline Gd55Co35Ni10 ribbons,two magnetic phase transitions occur at 158 and 214 K,respectively.The peak value of-△SM under a field change of 0-5 T is 6.5 J/kg K at 192 K for amorphous Gd55Co35Ni10 ribbons.A relatively large magnetic entropy change(～5.0 J/kg K) under a field change of 0-5 T for the crystalline Gd55Co35Ni10 ribbons is obtained in the temperature interval range of 154-214 K.The large platform of magnetic entropy change and the negligible thermal/magnetic hysteresis loss mean the crystalline Gd55Co35Ni10 compound can satisfy the requirement of the Ericsson-type refrigerator working in the temperature range from 154K to 214K.

引用

页码：1096 / 1099

页数：4

共 4 条

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