Icositetrahedral and icosahedral atomic configurations observed in the Nb-Ag metallic glasses synthesized by ion beam mixing

Journal Article · Mon Aug 28 00:00:00 EDT 2006 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2345041· OSTI ID:20883206

Tai, K P; Gao, N; Dai, X D; Li, J H; Lai, W S; Liu, B X ^[1]

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1. Advanced Materials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)

Metallic glasses are obtained in an immiscible Nb-Ag system by ion beam mixing and an atomic configuration in the amorphous structure is discovered, i.e., an icositetrahedral ordering, which, together with an icosahedral ordering also observed in the Nb-Ag metallic glasses and in some previously reported systems, helps in formulating a structural spectrum of the amorphous solids. The experimental characterization and atomistic modeling with an ab initio derived Nb-Ag potential demonstrate the significance of structural heredity, i.e., the crystalline structures of the constituent metals play a decisive role in determining the atomic structure of the metallic glasses in the system.

• OSTI ID: 20883206
• Journal Information: Applied Physics Letters, Vol. 89, Issue 9; Other Information: DOI: 10.1063/1.2345041; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CRYSTAL STRUCTURE
ION BEAMS
METALLIC GLASSES
NIOBIUM ALLOYS
SILVER ALLOYS
SIMULATION