Journal
PHYSICAL REVIEW LETTERS
Volume 113, Issue 23, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.235701
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Funding
- Department of Energy (DOE) Office of Science Graduate Fellowship Program [DE-SC0006949]
- NSF [AGS-111916]
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It has been conjectured that roughness plays a role in surface nucleation, the tendency for freezing to begin preferentially at the liquid-gas interface. Using high speed imaging, we sought evidence for freezing at the contact line on catalyst substrates with imposed characteristic length scales ( texture). Length scales consistent with the critical nucleus size and with delta similar to tau/sigma, where tau is a relevant line tension and sigma is the surface tension, range from nanometers to micrometers. It is found that nanoscale texture causes a shift in the nucleation of ice in supercooled water to the three-phase contact line, while microscale texture does not.
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