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Magnetocaloric Properties Desired for Magnetic Refrigeration System near Room Temperature

Published online by Cambridge University Press:  21 March 2011

H. Wada
H. Wada*
Affiliation:
Department of Physics, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
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Abstract

In order to realize the magnetic refrigeration system, it is necessary to develop a 100 W class refrigerator with COP > 7.5. This requires us to find new magnetic refrigerant materials, of which cooling capacity is 2.5 times higher than that of Gd. In this paper, first we discuss the cooling capacity of magnetic refrigerant materials to achieve COP = 7.5. Then, we compare the experimental results of MnAsSb, MnFe(PGe) and La(FeCoSi)13 compounds with the calculated cooling capacity. It is suggested that a composite layer material of MnFe(PGe) would show excellent cooling capacity in the temperature span of 20 K.

Keywords

magnetic propertiesGdMn
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1310: Symposium FF – Magnetocalorics and Magnetic Cooling , 2011 , mrsf10-1310-ff01-04
Copyright
Copyright © Materials Research Society 2011

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References

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