Effect of Minor Co Substitution for Fe on the Formability and Magnetic and Magnetocaloric Properties of the Amorphous Fe88Ce7B5 Alloy

Metals

Benzhen Tang¹  Peng Yu¹  Leling Pan²  Ding Ding²  Lei Xia²  Qiang Wang²  Xu Zhou²  Jinlei Yao³ 

[1] Chongqing Key Laboratory of Photo-Electric Functional Materials, College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, China;Institute of Materials, Shanghai University, Shanghai 200072, China;Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China;

关键词: amorphous alloy;    glass formability;    Curie temperature;    magnetic entropy change;   

DOI  :  10.3390/met12040589

来源: DOAJ

【 摘 要 】

A small amount of Co was added to the Fe₈₈Ce₇B₅ glass forming alloy for the possibility of improving its glass formability and magnetocaloric effect. The Curie temperature of the amorphous Fe_88-xCe₇B₅Co_x (x = 0, 1, 2, 3) ribbons increases linearly with the Co content, while the maximum magnetic entropy change (−ΔS_m^peak) increases to 3.89 J/(kg × K) under 5 T at x = 1 and subsequently decreases with further Co addition. The mechanism for the influence of Co addition on magnetic properties and the magnetocaloric effect of the amorphous alloys was investigated. Furthermore, a flattened −ΔS_m profile was designed in the amorphous laminate composed of the amorphous Fe_88-xCe₇B₅Co_x (x = 0, 1, 2) ribbons. The high average −ΔS_m from ~287 K to ~320 K indicates the potential application perspective of the amorphous hybrid as a magnetic refrigerant of a domestic refrigerator.

【 授权许可】

Unknown