Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21270
Title: Enhanced glass forming ability and refrigerant capacity of a Gd 55Ni 22Mn 3Al 20 bulk metallic glass
Authors: Xia, L
Chan, KC 
Tang, MB
Keywords: Bulk metallic glass
Glass forming ability
Magnetocaloric effect
Micro-alloying
Issue Date: 2011
Publisher: Elsevier Science Sa
Source: Journal of alloys and compounds, 2011, v. 509, no. 23, p. 6640-6643 How to cite?
Journal: Journal of Alloys and Compounds 
Abstract: In this work, a small amount of Mn was added to a Gd 55Ni 25Al 20 glass forming alloy, as a replacement for Ni, and a Gd 55Ni 22Mn 3Al 20 bulk 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 -1 under a field of 3979 kA/m, which is about 29% larger than that of a Gd 55Ni 25Al 20 BMG. The effect of the minor Mn addition on the GFA and MCE of the BMG was investigated in the study.
URI: http://hdl.handle.net/10397/21270
DOI: 10.1016/j.jallcom.2011.03.120
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