Capillary Negative Pressure Measured by Nanochannel Collapse

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Tas, Niels R. and Escalante, Maryana and Honschoten van, Joost W. and Jansen, Henri V. and Elwenspoek, M. (2010) Capillary Negative Pressure Measured by Nanochannel Collapse. Langmuir, 26 (3). pp. 1473-1476. ISSN 0743-7463

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Abstract:A new method is presented to measure capillarity-induced negative pressure. Negative pressures of several bars have been measured for five different liquids (ethanol, acetone, cyclohexane, aniline, and water) over a range of surface tension. Capillary negative pressure was measured in 79 ( 3 nmsilica nanochannels on the basis of the determination of the critical channel width for elastocapillary collapse of the flexible plate covering the channels. The results are consistent with the Young-Laplace equation.
Item Type:Article
Copyright:© 2010 American Chemical Society
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/74706
Official URL:http://dx.doi.org/10.1021/la903649n
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