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Magnetic properties and magnetocaloric effect in Fe90-xNixZr10 alloy ribbons
KTH.
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2013 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 113, no 21, 213908- p.Article in journal (Refereed) Published
Abstract [en]

We report magnetic properties and magnetocaloric (MC) effect in Fe90-xNixZr10 (x = 0, 5, 10, and 15) alloy ribbons prepared by rapid-quenching method. We found the Curie temperature (T-C) of the alloy ribbons depends strongly on Ni-doping concentration (x) increasing from 245 K for (x = 0), through 306 K (for x = 5) up to T-C = 403 (for x = 15). Also, the dependence of the maximum magnetic entropy change (vertical bar Delta S-max vertical bar) on Ni content was readily apparent. Indeed, for the x = 0 and 5 samples that have T-C around room temperature, the vertical bar Delta S-max vertical bar values increment under magnetic field changes of 10, 20, and 40 kOe was found to be as high as 0.87, 1.76, and 3.04 J.kg(-1).K-1 for x = 0, and 1.03, 1.90, and 3.26 J.kg(-1).K-1 for x = 5, respectively. These values correspond to refrigerant capacity in the range of 86-334 J.kg(-1) and are comparable to other known MC materials. High magnetocaloric performance in rare-earth-free non-expensive metallic alloys indicates that these materials could be competitive candidate for active magnetic refrigeration at room temperature.

Place, publisher, year, edition, pages
2013. Vol. 113, no 21, 213908- p.
Keyword [en]
Magnetic properties, Magnetic refrigeration, Magnetocaloric effects, Zirconium
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URN: urn:nbn:se:kth:diva-125868DOI: 10.1063/1.4809754ISI: 000320674500054Scopus ID: 2-s2.0-84879332450OAI: oai:DiVA.org:kth-125868DiVA: diva2:641291
Note

QC 20130816

Available from: 2013-08-16 Created: 2013-08-15 Last updated: 2017-12-06Bibliographically approved

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