Magnetocaloric effect in heavy rare-earth elements doped Fe-based bulk metallic glasses with tunable Curie temperature
Artikel i vetenskaplig tidskrift, 2014

The effects of heavy rare earth (RE) additions on the Curie temperature (T-C) and magnetocaloric effect of the Fe-RE-B-Nb (RE-Gd, Dy and Ho) bulk metallic glasses were studied. The type of dopping RE element and its concentration can easily tune T-C in a large temperature range of 120K without significantly decreasing the magnetic entropy change (Delta S-M) and refrigerant capacity (RC) of the alloys. The observed values of Delta S-M and RC of these alloys compare favorably with those of recently reported Fe-based metallic glasses with enhanced RC compared to Gd5Ge1.9Si2Fe0.1. The tunable T-C and large glass-forming ability of these RE doped Fe-based bulk metallic glasses can be used in a wide temperature range with the final required shapes.

Författare

J. W. Li

Chinese Academy of Sciences

J. T. Huo

Chinese Academy of Sciences

Jiayan Law

Chalmers, Teknisk fysik, Materialens mikrostruktur

C. T. Chang

Chinese Academy of Sciences

J. Du

Chinese Academy of Sciences

Q. K. Man

Chinese Academy of Sciences

X. M. Wang

Chinese Academy of Sciences

R. W. Li

Chinese Academy of Sciences

Journal of Applied Physics

0021-8979 (ISSN) 1089-7550 (eISSN)

Vol. 116 Art. no. 063902- 063902

Ämneskategorier

Annan teknik

Metallurgi och metalliska material

DOI

10.1063/1.4892431