Paper Title:
Molecular Dynamics Simulation of Relaxation and Local Structure Change of a Molten Cu135 Cluster during Rapidly Quenching
  Abstract

Relaxation and local structure changes of a molten Cu135 cluster have been studied by molecular dynamics simulation using embedded atom method when the cluster is rapidly quenched to 700K, 600K, 500K, 400K, 300K, 200K, and 100K. With decreasing quenching temperature, details of energy evolvement and relaxation are analyzed. The simulation results show that the final structures are molten at 700K, like-icosahedral geometry at 600K-200K, non-crystal at 100K. The average energy of atoms is the lowest at 500K, and in the relaxation has abrupt increase at 25,135 and 42ps separately at 400K, 300K, and 200K. The simulation reveals that the quenching temperature has great affect on the relaxation processes of the Cu135 cluster after β relaxation region.

  Info
Periodical
Chapter
Chapter 2: Frontiers of Materials Science and Engineering
Edited by
Ran Chen
Pages
908-913
DOI
10.4028/www.scientific.net/MSF.694.908
Citation
S.N. Xu, N. He, L. Zhang, "Molecular Dynamics Simulation of Relaxation and Local Structure Change of a Molten Cu135 Cluster during Rapidly Quenching", Materials Science Forum, Vol. 694, pp. 908-913, 2011
Online since
July 2011
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$32.00
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