Abstract
In the second part of our paper, we address crystal nucleation in the metastable liquid miscibility region of eutectic systems that is always present, though experimentally often inaccessible. While this situation resembles the one seen in single component crystal nucleation in the presence of a metastable vapor-liquid critical point addressed in previous works, it is more complex because of the fact that here two crystal phases of significantly different compositions may nucleate. Accordingly, at a fixed temperature below the critical point, six different types of nuclei may form: two liquid-liquid nuclei: two solid-liquid nuclei; and two types of composite nuclei, in which the crystalline core has a liquid “skirt,” whose composition falls in between the compositions of the solid and the initial liquid phases, in addition to nuclei with concentric alternating composition shells of prohibitively high free energy. We discuss crystalline phase selection via exploring∕identifying the possible pathways for crystal nucleation.
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Dates
Type | When |
---|---|
Created | 18 years ago (Aug. 21, 2007, 6:14 p.m.) |
Deposited | 2 years ago (July 31, 2023, 9:14 p.m.) |
Indexed | 3 weeks, 2 days ago (July 30, 2025, 6:49 a.m.) |
Issued | 18 years ago (Aug. 21, 2007) |
Published | 18 years ago (Aug. 21, 2007) |
Published Online | 18 years ago (Aug. 21, 2007) |
Published Print | 18 years ago (Aug. 21, 2007) |
@article{T_th_2007, title={Phase field theory of interfaces and crystal nucleation in a eutectic system of fcc structure: II. Nucleation in the metastable liquid immiscibility region}, volume={127}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.2752506}, DOI={10.1063/1.2752506}, number={7}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Tóth, Gyula I. and Gránásy, László}, year={2007}, month=aug }