Impurity mediated nucleation in hexadecane-in-water emulsions
| Autor: | Hubert E. King, Amy B. Herhold, Deniz Ertas, Alex J. Levine |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Condensed Matter - Materials Science
education.field_of_study Materials science Kinetics Dispersity Population Nucleation Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Thermodynamics Condensed Matter - Soft Condensed Matter Hexadecane Isothermal process Condensed Matter::Soft Condensed Matter chemistry.chemical_compound chemistry Impurity Soft Condensed Matter (cond-mat.soft) Classical nucleation theory education |
| Zdroj: | Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. 59(6) |
| ISSN: | 1063-651X |
| Popis: | We report detailed nucleation studies on the liquid-to-solid transition of hexadecane using nearly monodisperse hexadecane-in-water emulsions. A careful consideration of the kinetics of isothermal and nonisothermal freezing show deviations from predictions of classical nucleation theory, if one assumes that the emulsion droplet population is homogeneous. Similar deviations have been observed previously. As an explanation, we propose a novel argument based on the dynamic generation of droplet heterogeneity mediated by mobile impurities. This proposal is in excellent agreement with existing data. RevTeX 3.0, 11 pages with 7 embedded eps figures, \documentstyle[aps,twocolumn,floats,epsf]{revtex}. Submitted to Phys. Rev. E |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|