Bubble nucleation and growth anomaly for a hydrophilic microheater attributed to metastable nanobubbles

Nanobubbles on a hydrophilic surface immersed in water and ethanol are inferred from the response of the surface to two consecutive heat pulses with a variable separation time. Bubble nucleation occurs at specific positions on the surface during the first heat pulse but at lower nucleation temperatu...

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Bibliographic Details
Published in:Physical review letters 2007-03, Vol.98 (12), p.124501-124501, Article 124501
Main Authors: Cavicchi, Richard E, Avedisian, C Thomas
Format: Article
Language:English
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Summary:Nanobubbles on a hydrophilic surface immersed in water and ethanol are inferred from the response of the surface to two consecutive heat pulses with a variable separation time. Bubble nucleation occurs at specific positions on the surface during the first heat pulse but at lower nucleation temperatures and random locations on the second. Nanobubbles are hypothesized to form on collapse of the bubble from the first pulse.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.98.124501