Analysis of structural and thermomagnetic properties in hexagonal Fe50Mn35Sn15 alloy.

Autor: Ravisankar, Naveen Kumar, Rajasabai, Senthur Pandi
Předmět:
Zdroj: Applied Physics A: Materials Science & Processing; Oct2024, Vol. 130 Issue 10, p1-8, 8p
Abstrakt: An off-stoichiometric Fe 2 MnSn alloy was prepared by vacuum arc melting and homogenized by vacuum annealing. The structural analysis indicated that the alloy exhibits a D0 19 hexagonal structure. Isothermal magnetization analysis at room temperature showed soft ferromagnetic behavior and exchange magnetic anisotropy. Furthermore, the isofield magnetization study revealed a Curie temperature ( T c ) of 455 K with a second-order magnetic phase transition. A similar trace of the transition point was observed in the differential scanning calorimetric analysis. We estimated a magnetic entropy change ( Δ S M = − 4 J kg - 1 K - 1 ) and refrigerant capacity (RC = 116 J kg - 1 ) from M-T measurements, highlighting its potential for thermomagnetic generators and magnetic refrigerator applications. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index