The influence of gallium on magnetocaloric effect in Gd60Tb40 alloys

被引：6

作者：

Ao, W. Q. ^{[1
]}

Jian, Y. X.

Liu, F. S.

Feng, X. W.

Li, J. Q.

机构：

[1] Shenzhen Univ, Dept Mat Sci & Engn, Shenzhen 518060, Peoples R China

[2] Shenzhen Key Lab Special Funct Mat, Shenzhen 518060, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 307卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Gd-Tb alloy; gallium substitution; magnetocaloric effect;

D O I：

10.1016/j.jmmm.2006.03.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influences of gallium substitution for terbium in Gd60Tb40 on the phase formation, Curie temperature and magnetic entropy change have been investigated. A series of Gd60Tb40-xGax with x = 0, 1, 3 and 5 alloys were prepared by arc-melting method. The X-ray diffraction (XRD) analysis reveals that a small amount of Ga substitution for terbium in Gd60Tb40 can form the solid solution (Gd, Tb). The Curie temperature (T-c) increases from 270 K for Gd60Tb40 to 297 K for Gd60Tb37Ga3, while the maximum magnetic entropy changes Delta S-M,S- max decreases from 5.15 J/K kg for Gd60Tb40 to 3.32 J/K kg for Gd60Tb37Ga3 with increasing the Ga content. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：120 / 123

页数：4