Tailoring the GFA, -∆SM and RC of Fe86-2xZr8+xB5+xCu1 (x = 0,1& 2) metallic glass ribbons for magnetocaloric applications

Abstract

The present investigation explores the quaternary metallic glass (MG) Fe_86–2xZr_8+xB_5+xCu₁ (x = 0,1& 2) ribbons that examined for the magnetocaloric effect (MCE) and glass forming ability (GFA) characteristics of the ribbons. The MGs are spun into a ribbon with typical amorphous characteristics by rapid solidification technique and XRD, DSC and VSM have examined their structure and magnetic properties. The observed increase in the α parameter with the increase in the boron and zirconium concentration suggests an increase in the amorphous character of the material. The magnetization-temperature curve demonstrates that the Curie transition temperature consistently increases with the presence of boron and zirconium, and shows a significant shift in entropy, ranging from 1.68 to 2.01 J.kg^-1K^-1 at a magnetic field of 2.5 T. Additionally, it exhibits a noteworthy Relative Cooling Power of 38.76–53.74 J.kg^-1. The potential of this material as an exceptional low-temperature refrigeration material around room temperature is demonstrated by these outcomes.