Cu-based bulk amorphous alloy with larger glass-forming ability and supercooled liquid region

Fu, H. M. and Zhang, H. F. and Wang, H. and Hu, Z. Q. (2008) Cu-based bulk amorphous alloy with larger glass-forming ability and supercooled liquid region. Journal of Alloys and Compounds, 458 (1-2). pp. 390-393. ISSN 0925-8388

Abstract

The glassy rod with a maximum sample thickness of 11 mm and larger supercooled liquid region of 108 K was successfully fabricated when substituting Cu with minor amount of Ag in the Cu-Zr-Al-Gd alloy system. The value of γ reaches a maximum of 0.418 for the Cu45.5Zr45Al7Gd2Ag0.5 bulk metallic glass (BMG) alloy. The high glass-forming ability (GFA) and larger supercooled liquid region are discussed from atomic size, negative mixing heat among constituent elements and thermodynamics.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2007 Elsevier B.V. Permanent restricted access to published version in accordance with the copyright policy of the publisher.
Depositing User: Dr Hao Wang
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 13 Jan 2009 16:30
Last Modified: 04 Aug 2014 04:39
Uncontrolled Keywords: atomic size; bulk metallic glass; glass-forming ability; supercooled liquid regions
Fields of Research (FOR2008): 09 Engineering > 0912 Materials Engineering > 091206 Glass
03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030307 Theory and Design of Materials
03 Chemical Sciences > 0306 Physical Chemistry (incl. Structural) > 030602 Chemical Thermodynamics and Energetics
?? 912 ??
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.1016/j.jallcom.2007.03.114
URI: http://eprints.usq.edu.au/id/eprint/15694

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