Article ID Journal Published Year Pages File Type
1600404 Intermetallics 2012 4 Pages PDF
Abstract

The magnetic entropy change of a Dy-based bulk metallic glass (BMG) was investigated in the temperature range of 2–94 K. The alloy shows spin glass like freezing process around 18.5 K. Above the spin freezing temperature, the magnetic entropy change is negative with a minimum about −8.3 J⋅kg−1K−1, demonstrating its good magnetocaloric effect (MCE) performance. Below the spin freezing temperature, irreversible positive magnetic entropy change is obtained with a maximum of 27.7 J⋅kg−1K−1 indicating large internal entropy production, which relates to the random magnetic anisotropy.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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