Journal Article

The multi peaks of magnetocaloric effect in Ni48Mn39.5Sn9.5Al3 ribbon

Hamad, Mahmoud A., Alamri, Hatem R.

2024

Overview

The magnetocaloric effect (MCE) of Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbon is simulated using a phenomenological model with possible uses in magnetic refrigeration (MR). In this work, both conventional and inverse MCEs associated with magnetic (ferromagnet-antiferromagnet) and structural (austenite–martensite) phase transitions are theoretically investigated. The results show that three associated peaks of the inverse and conventional MCEs are observed. It is recommended that magnets with triple peak MCE behaviour, such as Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbons, may offer an intriguing MR with a larger temperature-range than conventional refrigerant compounds, particularly Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbons, which are cheap to use in MR. Furthermore, the MCE values of Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbons are significantly higher than those of some magnetocaloric materials from previous studies. Consequently, Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbons are appropriate magnetocaloric magnets for wide temperature range, covering cryogenic and room-temperatures.

• Publisher: Springer Berlin Heidelberg,Springer Nature B.V
• Subject: Alloys / Antiferromagnetism / Characterization and Evaluation of Materials / Chemical elements / Condensed Matter Physics / Cooling / Energy consumption / Ferromagnetism / Heat treating / Machines / Magnetic materials / Magnets / Manufacturing / Martensite / Nanotechnology / Optical and Electronic Materials / Phase transitions / Physics / Physics and Astronomy / Processes / Ribbons / Surfaces and Interfaces / Temperature / Thin Films