Understanding the kinetic anisotropy of the soft-sphere bcc crystal–melt interfaces
Understanding the kinetic anisotropy of the soft-sphere bcc crystal–melt interfaces
复制标题
了解软球 bcc 晶体与熔体界面的动力学各向异性
DOI:
10.1088/1361-648x/ac6647
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发表时间:
2022-04
期刊:
影响因子:
--
通讯作者:
Y. Yang
中科院分区:
文献类型:
--
作者:
Y. S. Wang;Z. Liang;X. Zhang;W. L. Lu;Z. Y. Yu;X. M. Ma;H. T. Liang;Y. Yang
Abstract. By employing the non-equilibrium molecular dynamics (MD) simulations and the time-dependent Ginzburg–Landau (TDGL) theory for the solidification kinetics, we predict the kinetic coefficients for the bcc(100), (110), and (111) CMIs of the soft-spheres, which are modeled with the inverse-power repulsive potential, and compare with the previous reported data of the bcc Fe system. We confirm a universal-like behavior of the spatial integrations of the (density wave amplitudes) Ginzburg–Landau order parameter square-gradient for the bcc CMI systems. The TDGL predictions of the kinetic anisotropies for bcc soft-sphere and bcc Fe CMI systems are identical; both agree well with the MD measurement for the soft-sphere system but differ strongly with the MD measurement for the Fe system. This finding implies that the current TDGL theory reflects a preference of presenting the generic anisotropy relationship due to the interfacial particle packings but lacks the contribution parameter which addresses the specificities in the kinetic anisotropies owing to the particle–particle interactions. A hypothesis that the density relaxation times for the interface melt phases to be anisotropic and material-dependent is then proposed.
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影响因子:
3.7
作者:
Hoyt, JJ;Asta, M
通讯作者:
Asta, M
DOI:
10.1063/1.1931668
发表时间:
2005-06
期刊:
The Journal of chemical physics
影响因子:
--
作者:
D. Heyes;A. Brańka
通讯作者:
D. Heyes;A. Brańka
DOI:
10.1023/a:1015815928191
发表时间:
2002-07-01
期刊:
INTERFACE SCIENCE
影响因子:
--
作者:
Bragard, J;Karma, A;Plapp, M
通讯作者:
Plapp, M
影响因子:
4.4
作者:
James R. Morris;Xueyu Song
通讯作者:
James R. Morris;Xueyu Song
影响因子:
4.4
作者:
A. Haymet;D. Oxtoby
通讯作者:
A. Haymet;D. Oxtoby