Article ID Journal Published Year Pages File Type
1623327 Journal of Alloys and Compounds 2008 4 Pages PDF
Abstract

Sample of HoxEr1−xN (x = 0.25, 0.5, 0.75) were synthesized by hot isostatic pressing of alloy blocks in nitrogen gas and their specific heat were measured under zero-field and 5 T. The peak value of the specific heat associated with the ferro–para magnetic transition of HoxEr1−xN was lager than that of Er3Ni which is used commercially as a magnetic regenerator for the Gifford–McMahon refrigerator. Magnetic entropy change ΔS and adiabatic temperature range ΔT were evaluated from entropy curves under zero-field and 5 T. Both the properties were very promising from viewpoints of application of rare-earth mononitride to the magnetic refrigerant and/or regenerator working at cryogenic temperatures around their Curie's temperature.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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