Published June 30, 2008 | Version v1
Journal article

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

  • 1. School of Engineering, University of Queensland, St. Lucia, Qld 4072 (Australia)
  • 2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 (China)
  • 3. Faculty of Engineering and Surveying, University of Southern Queensland, Toowoomba, Qld 4350 (Australia)

Description

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

Availability note (English)

Available from http://dx.doi.org/10.1016/j.jallcom.2007.03.114

Additional details

Identifiers

DOI
10.1016/j.jallcom.2007.03.114;
PII
S0925-8388(07)00752-9;

Publishing Information

Journal Title
Journal of Alloys and Compounds
Journal Volume
458
Journal Issue
1-2
Journal Page Range
p. 390-393
ISSN
0925-8388
CODEN
JALCEU

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40013213
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALLOY SYSTEMS; ALUMINIUM ALLOYS; COPPER ALLOYS; GADOLINIUM ALLOYS; GLASS; METALLIC GLASSES; MIXING HEAT; THERMODYNAMICS; ZIRCONIUM ALLOYS
Descriptors DEC
ALLOYS; ENTHALPY; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.