MagneticpropertiesandmagnetocaloriceffectsofGd65（Cu,Co,Mn）35amorphousribbons

被引：6

作者：

Peng Jia ^{[1
,2
]}

Leipeng Duan ^{[1
,2
]}

Kang Wang ^{[1
,2
]}

Engang Wang ^{[1
,2
]}

机构：

[1] Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University

[2] School of Metallurgy, Northeastern University

来源：

JournalofMaterialsScience&Technology | 2019年 / 35卷 / 10期

关键词：

Phase transition; Magnetocaloric effect; Refrigeration capacity; Amorphous ribbon; Gd-based ribbon;

D O I：

暂无

中图分类号：

TG139.8 [];

学科分类号：

080502 ;

摘要：

The magnetic phase transition and magnetocaloric effects of Gd65（Cu,Co,Mn）35 amorphous ribbons were investigated. The increased Mn substitution for Co or Mn substitution for Cu led into a higher secondorder magnetic phase transformation temperature, near 200 K in all ribbons. Under the field change of 7T, a maximum entropy change（ Sm max） of 6 J kg-1K-1 was achieved in Gd（65）Cu10Co20Mn5 ribbon and slightly dependent on the compositions. With varied composition, a full width at half of Sm maxwas greatly widened to be over than 180 K for Gd65Cu15Co10Mn（10） ribbon. The refrigeration capacity was also greatly enhanced to 1000J kg-1 for Gd65Cu20Co10Mn5 ribbon, which was even excellent compared with other Gd-based amorphous systems.

引用

页码：2283 / 2287

页数：5