Phys. Rev. Lett. 98, 124501 (2007) [4 pages]Bubble Nucleation and Growth Anomaly for a Hydrophilic Microheater Attributed to Metastable NanobubblesReceived 21 April 2006; revised 27 December 2006; published 19 March 2007 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. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.124501
DOI:
10.1103/PhysRevLett.98.124501
PACS:
47.55.db, 64.60.My, 64.60.Qb, 68.08.Bc
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