Enhanced glass forming ability and refrigerant capacity of a Gd55Ni22Mn3Al20bulk metallic glass

L. Xia, Kang Cheung Chan, M. B. Tang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

30 Citations (Scopus)

Abstract

In this work, a small amount of Mn was added to a Gd55Ni25Al20glass forming alloy, as a replacement for Ni, and a Gd55Ni22Mn3Al20bulk metallic glass (BMG) was obtained by suction casting. Its glass forming ability (GFA) was characterized by X-ray diffraction and differential scanning calorimetry, and its magnetic properties were measured using a magnetic property measurement system. It is found that the minor Mn addition can significantly improve both the GFA and the magnetocaloric effect (MCE) of the alloy. The refrigerant capacity (RC) of the BMG can reach a high value of 825 J kg-1under a field of 3979 kA/m, which is about 29% larger than that of a Gd55Ni25Al20BMG. The effect of the minor Mn addition on the GFA and MCE of the BMG was investigated in the study.
Original languageEnglish
Pages (from-to)6640-6643
Number of pages4
JournalJournal of Alloys and Compounds
Volume509
Issue number23
DOIs
Publication statusPublished - 9 Jun 2011

Keywords

  • Bulk metallic glass
  • Glass forming ability
  • Magnetocaloric effect
  • Micro-alloying

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this