Magnetic properties and magnetocaloric effects of Gd65(Cu, Co, Mn)35 amorphous ribbons. Issue 10 (October 2019)

• Record Type: Journal Article
• Authors: Jia, Peng; Duan, Leipeng; Wang, Kang; Wang, Engang
• Is Part Of: Journal of materials science & technology. Volume 35:Issue 10(2019)
• Page Start: 2283
• Page End: 2287
• Publication Date: 2019-10
• Subjects: Phase transition -- Magnetocaloric effect -- Refrigeration capacity -- Amorphous ribbon -- Gd-based ribbon; Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2019.05.056
• Languages: English
• ISSNs: 1005-0302

Abstract

Abstract: The magnetic phase transition and magnetocaloric effects of Gd65 (Cu, Co, Mn)35 amorphous ribbons were investigated. The increased Mn substitution for Co or Mn substitution for Cu led into a higher second-order magnetic phase transformation temperature, near 200 K in all ribbons. Under the field change of 7 T, a maximum entropy change (Δ S m max ) of 6 J kg −1 K −1 was achieved in Gd65 Cu10 Co20 Mn5 ribbon and slightly dependent on the compositions. With varied composition, a full width at half of Δ S m max was greatly widened to be over than 180 K for Gd65 Cu15 Co10 Mn10 ribbon. The refrigeration capacity was also greatly enhanced to 1000 J kg −1 for Gd65 Cu20 Co10 Mn5 ribbon, which was even excellent compared with other Gd-based amorphous systems.