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Published November 8, 2003 | Published
Journal Article Open

Criteria for formation of metallic glasses: The role of atomic size ratio


We consider metallic alloys of Cu*, Cu, and Cu** in which the atoms differ only in their atomic radii and examine how the size ratio affects the local orders in the alloy systems. These studies use molecular dynamics simulations in which the atomic interactions are modeled with a Sutton–Chen many-body potential. Considering rapid cooling of these binary and ternary alloys from the melt, we find three regimes defined by the magnitude of atomic size ratio lambda (lambda<=1.0): with (i) large size ratios of 0.95

Additional Information

© 2003 American Institute of Physics. (Received 13 September 2002; accepted 12 August 2003) We thank Dr. Alejandro Strachan for many helpful discussions. This work was supported in part by the MRSEC Program of the National Science Foundation under Award Nos. DMR-0080065 and ARO-DARPA-SAM project. The facilities of the MSC used for these studies were funded partly by NSF MRI, ARO/DURIP, and IBM-SUR. In addition, support for the MSC is also provided by grants from DOE-ASCI, ARO/MURI, ChevronTexaco, NIH, ONR, Seiko-Epson, Avery-Dennison, Kellogg's, General Motors, Beckman Institute, Asahi Kasei, Toray, and Nippon Steel.

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August 22, 2023
October 13, 2023