The existence of large magnetocaloric effect at low field variation and the anti-corrosion ability of Fe-rich alloy with Cr substituted for Fe

Abstract

The influence of Cr substituted for Fe in Fe 78-x Cr x Si 4 Nb 5 B 12 Ag 1 ribbons on the crystallization and magnetic properties including the magnetocaloric effect have been investigated. DSC measurements showed that the crystallization temperature and the crystallization activation energy increased with Cr

Critical Parameters and Magnetocaloric Effect of the La<sub>5/8</sub>Ca<sub>3/8</sub>Mn<sub>0.9750</sub>Pd<sub>0.025</sub>O<sub>3</sub> Compound

“…According to the Curie-Weiss law for ferromagnetism, the large magnetic entropy change, ΔS M(T,H) , is expected at the Curie temperature T C and has high values for materials having large effective magnetic moment [11]. Since 1996, there have been numerous reports of exceptionally large magnetocaloric effects in perovskite manganese oxides [12]- [16]. In this paper, we report the critical parameters β, γ and δ determined from the Arrott plots, Arrott plots modified and magnetocaloric effects of the La 5/8 Ca 3/8 Mn 0.975 Pd 0.025 O 3 compound by analyzing the magnetization curves.…”