Magnetocaloric properties and solid solution strengthening of Gd-C and Gd-Dy-C alloys

被引：5

作者：

Chen, Yungui ^{[1
]}

Wu, Jinping ^{[1
]}

Mao, Sufen ^{[1
]}

Zhang, Tiebang ^{[1
]}

Tang, Yongbai ^{[1
]}

Tu, Mingjing ^{[1
]}

机构：

[1] Sichuan Univ, Sch Mat Sci & Engn, Chengdu 610065, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 422卷 / 1-2期

关键词：

Gd-C alloy; Gd-Dy-C alloy; solid solution alloy; magnetocaloric effect; micro-hardness;

D O I：

10.1016/j.jallcom.2005.11.072

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, the near room temperature magnetic refrigerating solid solution alloys, Gd1-x-C-x (x <= 5 at.%) and Gd0.98-xDyxC0.02 (x <= 20 at.%), were investigated together with a consideration of mechanical properties required by the container of the refrigerant material in a magnetic refrigerator. The results show that the micro-hardness of pure gadolinium metal can be much improved by adding carbon. The Curie temperature and adiabatic temperature changes of the Gd1-xCx (x < 0.05) alloys change little compared with pure gadolinium. The Curie temperature of Gd0.98-xDyxC0.02 alloys can be tuned by adding dysprosium and their adiabatic temperature changes do not change much in a magnetic field change of 0-1 T. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：21 / 24

页数：4

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