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Icosahedral Order in Supercooled Liquids and Glassy Alloys

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Abstract:

Formation of the icosahedral order in supercooled liquids and glassy phases is investigated for a model alloy system by using molecular dynamics simulations. The simulation results show that the short-range icosahedral order grows in the supercooled liquids as well as in the glassy phases. Structural analyses reveal that the icosahedral clusters form a network in which the clusters are connected via the pentagonal-bicap sharing. Geometrical property of the network formed by the icosahedral clusters is an origin of medium-range order in the glassy phases

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

2031-2035

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.2031

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Online since:

March 2007

Authors:

Masato Shimono, Hidehiro Onodera

Keywords:

Computer Simulation, Metallic Glass, Rapid Solidification, Supercooled Liquid

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