The
magnetocaloric effect in Ni50-xCuxMn38Sn12B3
ribbons depending on the Cu substitution (x= 0, 1, 3) was investigated around the
Curie temperature. The purpose of the present study was to analyze the
magnetocaloric effect around a second order phase transition (around the Curie
temperature) which has a smaller thermal hysteresis compared to a first order
phase transition (Martensitic transition). The Curie temperature of the ribbons
shifted to higher temperatures with increasing Cu content. A conventional magnetocaloric effect
(MCE) was observed around the Curie temperature when the ribbons are subjected
to a magnetic field change of 5 T. The magnetic entropy changes were
calculated based on the isothermal magnetization data using thermodynamic
Maxwell equation. The highest magnetic entropy change and the refrigerant
capacity
was
obtained for the x=1 ribbon.
Primary Language | English |
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Subjects | Engineering |
Journal Section | Review Articles |
Authors | |
Publication Date | December 1, 2019 |
Submission Date | February 26, 2019 |
Acceptance Date | June 25, 2019 |
Published in Issue | Year 2019 |
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering
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