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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.
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页码:544 / 549
页数:6
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