Magnetic entropy change in LaFe11.5Si1.5 ribbons

被引：0
|
作者：
Xie, K [1 ]
Song, XP [1 ]
Lü, WP [1 ]
Zhu, YM [1 ]
Sun, ZB [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Sci, Xian 710049, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2005年 / 34卷 / 12期
关键词：
NaZn13-type intermetallic compounds; first-order phase transition; magnetic entropy change;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
LaFe11.5Si1.5 compound was prepared by melt-spinning. Microstructures and magnetic entropy change of the melt-spun ribbons were investigated. The melt-spun ribbons show a homogenous distribution of elements, and the homogeneity developed after 6 hours annealing. XRD results show that ribbons are composed of NaZn13-type LaFe11.5Si1.5 compounds and a-Fe phase. After annealing, the ribbons well crystallize in the NaZn13-type structure and exhibit large magnetic entropy change. These results suggest that the NaZn13-type LaFe11.5Si1.5 compounds with large magnetic entropy change can be produced by melt spinning; and will make the magnetic refrigerant cheaper.
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页码：1909 / 1912
页数：4
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