Giant adiabatic temperature change in FeRh alloys evidenced by direct measurements under cyclic conditions

• Published in: Acta materialia Vol. 106; pp. 15 - 21
• Main Authors: Chirkova, A., Skokov, K.P., Schultz, L., Baranov, N.V., Gutfleisch, O., Woodcock, T.G.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.03.2016
• Subjects: Adiabatic flow; Alloys; Calorimetry; Cycles; Entropy; FeRh; First-order transitions; Hysteresis; Magnetic fields; Magnetic measurement; Magnetic refrigeration; Magnetocaloric effect; Magnetic refrigeration; First-order transitions; FeRh; Magnetocaloric effect

We report on (1) direct measurements of ΔTad for binary Fe49Rh51 during field cycling and (2) maximum possible ΔTad measured under discontinuous protocol. Our results show that the ΔTad is 9.2 K on the first application of magnetic field of Δμ0H = 1.9 T and it remains as high as 6.2 K during the cyc...