Homogeneous crystal nucleation in liquid copper under quasi-isentropic compression
Homogeneous crystal nucleation in liquid copper under quasi-isentropic compression
复制标题
准等熵压缩下液态铜中的均质晶体成核
DOI:
10.1103/physrevb.92.014108
复制
发表时间:
2015-07
影响因子:
3.7
通讯作者:
Luo, S. N.
中科院分区:
文献类型:
--
作者:
Wu, H. A.;Zhu, M. H.;Liu, C. L.;Luo, S. N.
Shock-induced freezing in liquids has long been a subject of interest as well as mystery. With large-scale molecular dynamics simulations, we demonstrate that homogeneous crystal nucleation in liquid Cu can be realized under effective supercooling $(\ensuremath{\theta})$, via quasi-isentropic compression or ramp wave loading with a particle velocity ${u}_{\mathrm{p}}$ achieved within a ramp time $\ensuremath{\tau}$. The simulations yield the $\ensuremath{\tau}\text{\ensuremath{-}}{u}_{\mathrm{p}}\text{\ensuremath{-}}\ensuremath{\theta}$ relations for homogeneous crystallization at the spatial and temporal scales of molecular dynamics; a ramp wave loading with $\ensuremath{\tau}\ensuremath{\sim}100$ ps is essentially isentropic for liquid Cu. Based on classical nucleation theory, we predict $\ensuremath{\theta}$, and thus ${u}_{\mathrm{p}}$, as required for homogenous nucleation in experiments with larger length and time scales. Homogeneous nucleation can also be achieved with shock loading in initially supercooled liquids.
登录
查看更多内容
DOI:
10.1063/1.1896348
发表时间:
2005-05
期刊:
The Journal of chemical physics
影响因子:
--
作者:
C. Valeriani;Eduardo Sanz;D. Frenkel
通讯作者:
C. Valeriani;Eduardo Sanz;D. Frenkel
影响因子:
4.4
作者:
J. Walsh;M. H. Rice
通讯作者:
J. Walsh;M. H. Rice
影响因子:
1.8
作者:
R. Ishiguro;F. Caupin;S. Balibar
通讯作者:
R. Ishiguro;F. Caupin;S. Balibar
影响因子:
19.6
作者:
Dolan, D. H.;Knudson, M. D.;Deeney, C.
通讯作者:
Deeney, C.
DOI:
10.1063/1.2165196
发表时间:
2006-02
期刊:
The Journal of chemical physics
影响因子:
--
作者:
A. Matsuda;K. Kondo;K. Nakamura
通讯作者:
A. Matsuda;K. Kondo;K. Nakamura