Observation of outstanding magnetocaloric effect near room temperature in a Fe88Ce5Pr2B5 amorphous alloy. (February 2023)

• Record Type: Journal Article
• Authors: Yue, C.Y.; Wang, Q.; Zheng, X.N.; Li, A.L.; Ding, D.; Tang, B.Z.; Yu, P.; Yao, J.L.; Xia, L.
• Is Part Of: Intermetallics. Volume 153(2023)
• Publication Date: 2023-02
• Subjects: Amorphous alloy -- Magnetocaloric effect -- Glass-forming ability -- Magnetic entropy change; Intermetallic compounds -- Metallography -- Periodicals; Metallic glasses -- Periodicals; Composés intermétalliques -- Métallographie -- Périodiques; 669.94
• DOI: 10.1016/j.intermet.2022.107804
• Languages: English
• ISSNs: 0966-9795

Abstract

Abstract: A Fe88 Ce5 Pr2 B5 amorphous ribbon with outstanding magnetocaloric effect near ambient temperature is reported in this paper. The Fe88 Ce5 Pr2 B5 alloy was successfully quenched into an amorphous ribbon shape. The magnetic properties of the Fe88 Ce5 Pr2 B5 glassy ribbon were measured and the magnetocaloric behavior of the ribbon was studied. It was found that the amorphous ribbon showed the typical magnetocaloric behavior of second-order magnetic transition with a very large maximum magnetic entropy change (−Δ S m peak, ∼3.97 J/(kg × K) under 5 T) and adiabatic temperature rise (Δ T ad, ∼2.71 K under 5 T) near its Curie temperature (∼309 K). The mechanism for the almost highest −Δ S m peak near 310 K of the Fe88 Ce5 Pr2 B5 metallic glass reported in literature shows a promising perspective for achieving higher −Δ S m peak in Fe-RE-B amorphous alloys. Highlights: A Fe88 Ce5 Pr2 B5 amorphous alloy was successfully fabricated. The Fe88 Ce5 Pr2 B5 amorphous alloy shows a very large −Δ S m peak up to ∼3.97 J/(kg × K) and a Δ T ad, up to 2.71 K under 5 T near 310 K. The mechanism for the outstanding MCE of the Fe88 Ce5 Pr2 B5 amorphous alloy was studied. The findings show a promising perspective for achieving higher −Δ S m peak in the Fe-RE-B amorphous alloys.