Design of Cu8Zr5-based bulk metallic glasses
Creators
- 1. Department of Physics, Building 307, Technical University of Denmark, DK-2800 Lyngby (Denmark)
- 2. HASYLAB am DESY, Notkestrasse 85, D-22603 Hamburg (Germany)
- 3. Laboratory of New-Structured Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027 (China)
- 4. State Key Laboratory of Materials Modification, Department of Materials Engineering, Dalian University of Technology, Dalian 116024 (China)
Description
Basic polyhedral clusters have been derived from intermetallic compounds at near-eutectic composition by considering a dense packing and random arrangement of atoms at shell sites. Using such building units, bulk metallic glasses can be formed. This strategy was verified in the Cu-Zr binary system, where we have demonstrated the existence of Cu8Zr5 icosahedral clusters in Cu61.8Zr38.2, Cu64Zr36, and Cu64.5Zr35.5 amorphous alloys. Furthermore, ternary bulk metallic glasses can be developed by doping the basic Cu-Zr alloy with a minority element. This hypothesis was confirmed in systems (Cu0.618Zr0.382)100-xNbx, where x=1.5 and 2.5 at. %, and (Cu0.618Zr0.382)98Sn2. The present results may open a route to prepare amorphous alloys with improved glass forming ability
Additional details
Identifiers
- DOI
- 10.1063/1.2213020;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 88
- Journal Issue
- 24
- Journal Page Range
- p. 241913-241913.3
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37083693
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BINARY ALLOY SYSTEMS; COPPER ALLOYS; EUTECTICS; INTERMETALLIC COMPOUNDS; METALLIC GLASSES; NIOBIUM ALLOYS; RANDOMNESS; TERNARY ALLOY SYSTEMS; TIN ALLOYS; VITRIFICATION; ZIRCONIUM ALLOYS
- Descriptors DEC
- ALLOY SYSTEMS; ALLOYS; TRANSITION ELEMENT ALLOYS
Optional Information
- Notes
- (c) 2006 American Institute of Physics