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Alloy phases and metallic glass formation understood via cluster formulas

Alloy phases and metallic glass formation understood via cluster formulas,10.1016/j.cplett.2010.12.039,Chemical Physics Letters,Jixiang Chen,Chuang Do

Alloy phases and metallic glass formation understood via cluster formulas  
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Alloy phase structures and compositions in glass-forming Al–Ni–Zr system are analyzed by cluster-plus-glue-atom model and cluster line approach. Clusters in crystalline phases are shared with their neighboring clusters and the effective clusters after sharings are used to express the phases: phase=[effective cluster](glue atoms). This cluster formulas similar to molecular formulas for chemicals, contain key structure and composition information of the alloy phases. Cluster phases that require glue atoms and contain periodicity-incompatible clusters have close relationships with metallic glass formation. By avoiding cluster sharings, good glass forming compositions can be expressed by [isolated cluster](glue atom)x, x=1–3.
Journal: Chemical Physics Letters - CHEM PHYS LETT , vol. 502, no. 4, pp. 176-179, 2011
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