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Indexed by:期刊论文

Date of Publication:2016-01-05

Journal:JOURNAL OF ALLOYS AND COMPOUNDS

Included Journals:SCIE、EI

Volume:654

Page Number:340-343

ISSN No.:0925-8388

Key Words:Metallic glasses; Glass-forming ability; Eutectics; Cluster formulas

Abstract:Compositions of typical bulk metallic glasses (BMGs) and boron-containing eutectics have been previously interpreted by cluster formulas issued from the cluster-plus-glue-atom model. In the present work, binary BMG composition formulas are established via dissociating dual-cluster formulas for their relevant eutectics. It is unveiled that BMG formulas satisfy three ubiquitous rules: cluster formula of the form [cluster](glue atom)(1 or 3) with 24 valence electrons per unit formula, the center and the glue sites occupied by the same atomic species, and the BMG composition falling within the eutectic zone. These characteristics may serve as the finger prints for good glass formers and eventually the BMG design tool. (C) 2015 Elsevier B.V. All rights reserved.