Paper Title:
Simulation Study of Microstructure Transition of Liquid Ge during Rapid Cooling Solidification
  Abstract

Structural and dynamical properties of the rapid solidification process of liquid Ge have been investigated by molecular-dynamics calculations based on the Stillinger-Weber potential. The variations of microstructures during the solidification process are analyzed by the self-diffusion coefficient D(T), pair correlation function g(r) curves and the HA bond-type index method. The melting point implicated in D(T) is about 2100 K. The pair correlation function g(r) obtained by the simulated in liquid Ge is good agreement with experiment, the fist-peak of g(r) gradually becomes higher and sharper with the temperature decreasing, when temperature drops to 1400 K, the second-peak of g(r) begins to split. The change of HA bond-type indicated that the most important structural change occurs in the temperature range 1400 K-700 K.

  Info
Periodical
Materials Science Forum (Volumes 663-665)
Edited by
Yuan Ming Huang
Pages
1306-1309
DOI
10.4028/www.scientific.net/MSF.663-665.1306
Citation
C. Y. Zhu, Q. Xie, "Simulation Study of Microstructure Transition of Liquid Ge during Rapid Cooling Solidification", Materials Science Forum, Vols. 663-665, pp. 1306-1309, 2011
Online since
November 2010
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Price
$32.00
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