Structure and magnetocaloric effect in melt-spun La (Fe, Si)13 and MnFePGe compounds

被引：7
|
作者：
Yan Aru [1 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315040, Peoples R China
来源：
RARE METALS | 2006年 / 25卷
关键词：
magnetocaloric effect; melt-spun; magnetic entropy change;
D O I：
10.1016/S1001-0521(07)60142-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetocaloric properties of melt-spun La(Fe, Si)(13) and MnFePGe compounds were investigated. Very large value of magnetic entropy change vertical bar Delta S vertical bar = 31 and 35.4 J center dot(kg center dot K)(-1) under 5 T were obtained at 201 K in LaFe11.8Si1.2 melt-spun ribbons and at around 317 K in Mn1.1Fe0.9P0.76Ge0.24 melt-spun ribbons, respectively. The large magnetocaloric effect results from a more homogenous element distribution related to the very high cooling rate during melt-spinning. The excellent MCE properties, the low materials cost and the accelerated aging regime make the melt-spun-type La(Fe, Si)(13) and MnFePGe materials an excellent candidate for magnetic refrigerant applications.
引用
收藏
页码：544 / 549
页数：6
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