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Structure and Dynamical Relaxation in Undercooled Liquid of Cu50Co50 with Miscible Gap

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Abstract:

Molecular dynamics simulation has been performed to explore the structural and dynamical properties of undercooled Cu50Co50 melt based upon the embedded atom method (EAM), namely due to Zhou. With the reduction of temperature, liquid phase separation phenomenon is more obvious. The simulated coordination number (CN) of liquid Cu50Co50 indicate that no stronger interaction of heterogenic atom pairs than those of the same atom pairs happens in melts, and Cu50Co50 melt is close to an weak demixing system. And the Bhatia-Thornton (B-T) structure factor gets the same result. Temperature dependence of mean squared displacement (MSD) shows very weak glass formation behavior of Cu50Co50. Our work discusses that the relationship between the properties and L-L phase separation in undercooled liquid of Cu50Co50.

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Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

54-58

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.54

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Cite this paper

Online since:

June 2014

Authors:

Yu Qi, Li Wang*, Tong Qiu He

Keywords:

Atomic Scale, Liquid-Liquid Phase Separation Alloy, Molecular Dynamics Simulation

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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