Nucleation- and Emergence-Limited Growth of Ice from Pores
| Autor: | Hugo K. Christenson, James M. Campbell |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Quantitative Biology::Biomolecules
Materials science 010504 meteorology & atmospheric sciences Condensation Nucleation General Physics and Astronomy 02 engineering and technology Limiting 021001 nanoscience & nanotechnology 01 natural sciences Wedge (geometry) Physics::Geophysics Chemical physics Phase (matter) Astrophysics::Earth and Planetary Astrophysics Mica 0210 nano-technology Supercooling Physics::Atmospheric and Oceanic Physics 0105 earth and related environmental sciences Bulk crystal |
| Zdroj: | Physical Review Letters. 120 |
| ISSN: | 1079-7114 0031-9007 |
| Popis: | Nucleation of ice from vapor on atmospheric aerosols has been attributed to the condensation and freezing of supercooled water in small pores. Here we use wedge pores on mica to directly observe the growth of ice in confinement prior to the growth of bulk crystals. We report a transition in behavior with a decreasing temperature: At low temperatures, the limiting step is not nucleation but a free energy barrier associated with the growth of ice through a narrow pore mouth to become a bulk phase. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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