Outstanding magnetocaloric properties at ambient temperature of a Fe88La4Ce3B5 amorphous alloy

Fe88La4Ce3B5 amorphous alloy was successfully vitrified in the shape of ribbon with an average thickness of 39 micrometer. The magnetic and magnetocaloric properties of the Fe88La4Ce3B5 metallic glass were investigated. It was found that the soft magnetic amorphous ribbon exhibits a high peak value of magnetic entropy change (3.93 J/(K x kg) at 302.5 K under 5 T), which is higher than those of other iron-based metallic glasses. The outstanding magnetocaloric properties of the Fe88La4Ce3B5, give rise to a new way to improve the magnetocaloric properties around room temperature in the iron-based metallic glasses by adding RE elements.

Automated summary

Fe88La4Ce3B5 amorphous alloy was successfully vitrified in ribbon form with outstanding magnetocaloric properties, surpassing other iron-based metallic glasses and offering a new approach to enhance the magnetocaloric properties of iron-based metallic glasses.