首页|Effect of heavy rare-earth (Dy, Tb, Gd) addition on the glass-forming ability and magneto-caloric properties of Fe89Zr7B4 amorphous alloy

Effect of heavy rare-earth (Dy, Tb, Gd) addition on the glass-forming ability and magneto-caloric properties of Fe89Zr7B4 amorphous alloy

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  • NSTL
  • Elsevier
? 2022 Elsevier B.V.In this paper, by adding rare-earth (RE) elements to Fe89Zr7B4 ternary amorphous alloy, we obtained a series of Fe87Zr7B4RE2 (RE = Dy, Tb, Gd) amorphous ribbons to further improve the magnetic refrigeration capacity of the basic alloy. Through the heavy RE element substitutions, the glass-formability of the Fe89Zr7B4 alloy was improved effectively. Besides, the Curie temperature Tc of the alloy system increased from 275 K to 342 K, obtaining a roughly linear correlation between the de Gennes factor and Tc. Through the recombination of ribbons with different Tc values, we designed potential amorphous composites with a “table-like” magnetic entropy change curve under different temperatures. This research promises to deepen understanding of the effect of RE additions on the magneto-caloric properties and enhance the performance of Fe-Zr-B amorphous refrigerants around room temperature.

Amorphous alloyGlass-forming abilityMagnetic entropy changeMagneto-caloric effect

Xia L.、Peng J.、Tang B.、Bai C.、Wu Y.、Chen Q.、Li D.、Guo X.、Yu P.、Wang Q.、Ding D.

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Institute of Materials & Laboratory for Microstructure Shanghai University

College of Physics and Electronic Engineering of Chongqing Normal University Chongqing Key Laboratory of Optical and Electronic Functional Materials

2022

10.1016/j.jallcom.2022.166707

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
年,卷(期)：2022.925
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