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Magnetocaloric effect in as‐quenched and annealed Fe 91–x Y x Zr 9 (x = 0.5, 10) alloys
Author(s) -
Kim K. S.,
Kim Y. S.,
Zidanic J.,
Min S. G.,
Yu S. C.
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200777103
Subject(s) - magnetic refrigeration , arc melting , materials science , curie temperature , alloy , melt spinning , analytical chemistry (journal) , magnetization , annealing (glass) , argon , metallurgy , condensed matter physics , spinning , ferromagnetism , chemistry , magnetic field , composite material , physics , chromatography , quantum mechanics , organic chemistry
The magnetization behaviours have been analyzed for as‐quenched and annealed Fe 91–x Y x Zr 9 (x = 0, 5, 10) alloys. Samples were prepared by arc melting the high‐purity elemental constituents under argon gas atmosphere and by single roller melt spinning. These alloys were annealed one hour at 500 °C. The magnetic properties of the samples were measured by VSM. The Curie temperature increases with increasing Y concentration (x = 0 to 10). Temperature dependence of the entropy variation ΔS M was found to appear in the vicinity of the Curie temperature. The results show that annealed Fe 86 Y 5 Zr 9 alloys have a greater magnetocaloric effect than that those in as‐quenched alloys. The value is ‐1.23 J/kg K at ΔH = 1.5 T for annealed alloy and ‐0.89 for as‐quenched alloy, respectively. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)