PMID: 22587071May 17, 2012Paper

Crossover in growth laws for phase-separating binary fluids: molecular dynamics simulations

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Shaista AhmadSanjay Puri

Abstract

Pattern and dynamics during phase separation in a symmetrical binary (A+B) Lennard-Jones fluid are studied via molecular dynamics simulations after quenching homogeneously mixed critical (50:50) systems to temperatures below the critical one. The morphology of the domains, rich in A or B particles, is observed to be bicontinuous. The early-time growth of the average domain size is found to be consistent with the Lifshitz-Slyozov law for diffusive domain coarsening. After a characteristic time, dependent on the temperature, we find a clear crossover to an extended viscous hydrodynamic regime where the domains grow linearly with time. Pattern formation in the present system is compared with that in solid binary mixtures, as a function of temperature. Important results for the finite-size and temperature effects on the small-wave-vector behavior of the scattering function are also presented.

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Citations

Nov 12, 2013·The Journal of Chemical Physics·Raishma KrishnanSanjay Puri
Jul 6, 2014·The Journal of Chemical Physics·Awaneesh SinghChandan Dasgupta
Feb 3, 2015·Soft Matter·Awaneesh Singh, Sanjay Puri
Oct 29, 2014·The European Physical Journal. E, Soft Matter·Gaurav P ShrivastavSanjay Puri
Feb 2, 2013·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Shaista AhmadMarco Zannetti
Jan 18, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Subir K DasSubhajit Paul
Dec 15, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Raishma Krishnan, Sanjay Puri
Feb 12, 2021·Nature Communications·Michio Tateno, Hajime Tanaka
Oct 2, 2017·The Journal of Chemical Physics·Awaneesh SinghAnirban Chakraborti
Aug 24, 2017·The Journal of Chemical Physics·Harinadha GidituriMahesh V Panchagnula
Nov 7, 2014·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Shaista AhmadSubir K Das
Sep 26, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Prabhat K JaiswalSubir K Das
Oct 29, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Shensheng Chen, Xin Yong

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