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Theoretical prediction of crystallization kinetics of a supercooled Lennard-Jones fluid

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.5021944· OSTI ID:1459540
 [1];  [2]
  1. Univ. of Ruhuna, Matara (Sri Lanka). Dept. of Engineering Technology; Ames Lab. and Iowa State Univ., Ames, IA (United States)
  2. Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Chemistry

The first order curvature correction to the crystal-liquid interfacial free energy is calculated using a theoretical model based on the interfacial excess thermodynamic properties. The correction parameter (δ), which is analogous to the Tolman length at a liquid-vapor interface, is found to be 0.48 ± 0.05 for a Lennard-Jones (LJ) fluid. We show that this curvature correction is crucial in predicting the nucleation barrier when the size of the crystal nucleus is small. The thermodynamic driving force (Δμ) corresponding to available simulated nucleation conditions is also calculated by combining the simulated data with a classical density functional theory. In this study, we show that the classical nucleation theory is capable of predicting the nucleation barrier with excellent agreement to the simulated results when the curvature correction to the interfacial free energy is accounted for.

Research Organization:
Ames Lab. and Iowa State Univ., Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1459540
Alternate ID(s):
OSTI ID: 1438283
Report Number(s):
IS-J--9695
Journal Information:
Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 20 Vol. 148; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (5)

Equivalence between condensation and boiling in a Lennard-Jones fluid journal December 2020
Comment on “Theoretical prediction of crystallization kinetics of a supercooled Lennard-Jones fluid” [J. Chem. Phys. 148, 204506 (2018)] journal July 2019
Response to “Comment on ‘Theoretical prediction of crystallization kinetics of a supercooled Lennard-Jones fluid’” [J. Chem. Phys. 151, 017101 (2019)] journal July 2019
Interfacial free energy of a liquid-solid interface: Its change with curvature journal October 2019
Entropy and the Tolman Parameter in Nucleation Theory journal July 2019

Figures / Tables (4)