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

Hyon-Jee Lee | Zendy; Tahir Çağın | Zendy; William L. Johnson | Zendy; William A. Goddard | Zendy

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

Author(s) -

Hyon-Jee Lee,

Tahir Çağın,

William L. Johnson,

William A. Goddard

Publication year - 2003

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.1615494

Subject(s) - icosahedral symmetry , atomic radius , ternary operation , cluster (spacecraft) , phase (matter) , amorphous metal , materials science , symmetry (geometry) , crystallization , quasicrystal , alloy , coordination number , chemical physics , crystallography , metal , molecular dynamics , chemistry , thermodynamics , physics , metallurgy , computational chemistry , ion , geometry , mathematics , organic chemistry , computer science , programming language

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 ratiol ~l<1.0!: with ~i! large size ratios of 0.95,l<1.0, crystallization occurs; ~ii! with moderate size ratios of 0.60

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