The Magnetic Entropy Changes in Gd1-xCrx Alloys

Song Ling Huang; Dun Hui Wang; Zhi Da Han; S.K. Ren; Zheng Hua Su; You Wei Du

doi:10.4028/www.scientific.net/MSF.475-479.2267

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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479The Magnetic Entropy Changes in Gd1-xCrx Alloys

The Magnetic Entropy Changes in Gd_1-xCr_x Alloys

Abstract:

A series of Gd1-xCrx (x=0.01,0.03,0.05 and 0.07) alloys have been prepared by arc melting. After introducing a small quantity of Cr into Gd, the Curie temperatures of these alloys increase. Magnetic entropy changes at the Curie temperature of Gd1-xCrx (x=0.01, 0.03, 0.05) alloys are nearly the same as that of Gd. However, compared with Gd, the magnetic entropy changes of Gd1-xCrx (x=0.01, 0.03, 0.05) alloys remain at a high level in a wider temperature range. So Gd1-xCrx (x=0.01, 0.03, 0.05) alloys are more suitable as magnetic refrigerant to be used in Ericsson Recycle for room temperature magnetic refrigeration. Our results and the fact that Cr is quite cheaper than Gd, suggest that Gd1-xCrx alloys maybe utilized as refrigerant in room temperature magnetic refrigeration.

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Materials Science Forum (Volumes 475-479)

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2267-2270

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.2267

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Online since:

January 2005

Authors:

Song Ling Huang, Dun Hui Wang, Zhi Da Han, S.K. Ren, Zheng Hua Su, You Wei Du

Keywords:

Gd_1-xCr_x, Magnetic Entropy Change, Magnetic Refrigeration, Magnetocaloric Effect

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