Magnetocaloric Effect of Alloys Gd(Al1-xCox)2

被引：0

作者：

邓健秋 ^{[1
]}

祝金明 ^{[2
]}

严嘉琳 ^{[2
]}

庄应烘 ^{[2
]}

王日初 ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Central South University 2. Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Ministry of Education, Guangxi University

来源：

JournalofRareEarths | 2007年 / 06期

基金：

中国国家自然科学基金;

关键词：

GdAl2; magnetocaloric effect; rare earth alloy;

D O I：

暂无

中图分类号：

O482 [固体性质];

学科分类号：

070205 ; 0805 ; 080502 ; 0809 ;

摘要：

The magnetocaloric effect in alloys Gd(Al1-xCox)2 with x=0, 0.05, and 0.10 were investigated using X-ray diffraction (XRD) and magnetization measurements. It was found that three alloys crystallized in a single phase with MgCu2-type structure. The lattice parameter and Curie temperature decreased with increasing Co content, whereas the magnetic-entropy change increased. With a magnetic-field change of 2 T, the maximum of the magnetic-entropy change reached 4.6 J·kg-1·K-1 near Curie temperature at approximately 95 K in the alloy GdAl1.8Co0.2, which appeared to be an alternative candidate for active magnetic refrigerants working in the temperature range centered at 100 K.

引用

页码：783 / 786

页数：4

共 5 条

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