Surface Bubble Nucleation Stability

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Seddon, James R.T. and Kooij, E. Stefan and Poelsema, Bene and Zandvliet, Harold J.W. and Lohse, Detlef (2011) Surface Bubble Nucleation Stability. Physical Review Letters, 106 (5). 056101. ISSN 0031-9007

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Abstract:Recent research has revealed several different techniques for nanoscopic gas nucleation on submerged surfaces, with findings seemingly in contradiction with each other. In response to this, we have systematically investigated the occurrence of surface nanobubbles on a hydrophobized silicon substrate for various different liquid temperatures and gas concentrations, which we controlled independently. We found that nanobubbles occupy a distinct region of this parameter space, occurring for gas concentrations of approximately 100%–110%. Below the nanobubble region we did not detect any gaseous formations on the substrate, whereas micropancakes (micron wide, nanometer high gaseous domains) were found at higher temperatures and gas concentrations. We moreover find that supersaturation of dissolved gases is not a requirement for nucleation of bubbles
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Copyright:© American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/78758
Official URL:http://dx.doi.org/10.1103/PhysRevLett.106.056101
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