Achieving a large adiabatic temperature rise of Gd55Co25Al20 bulk metallic glass by minor Zn addition

L. Xia, Kang Cheung Chan, M. B. Tang, Y. D. Dong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

Micro-alloying is a useful way to improve the magneto-caloric effect of Gd-based bulk metallic glasses (BMGs). However, the minor addition of other elements usually decreases the Curie temperature of BMGs. In this work, we fabricated Gd55Co25Al(20−x)Znx (x = 2, 5) BMGs and studied their magnetic properties. It was found that a minor addition of Zn not only improved the peak value of the magnetic entropy change but also enhanced the Curie temperature of the fabricated BMG. As a result, the Gd55Co25Al15Zn5 BMG exhibits a rather high adiabatic temperature rise up to 5.1 K at a temperature of around 130 K under a field of 5 T.
Original languageEnglish
Pages (from-to)1333-1337
Number of pages5
JournalJournal of Materials Science
Volume50
Issue number3
DOIs
Publication statusPublished - 1 Jan 2015

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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