Yang, S.
, Nosonovsky, M.
, Zhang, H.
and Chung, K.
(2017),
Negative Pressure in Water Capillary Bridges at Nanocontacts, Nano Letters
(Accessed December 26, 2024)
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Negative Pressure in Water Capillary Bridges at Nanocontacts
Published
Author(s)
, , ,
Abstract
Negative Laplace pressure may develop inside a water capillary bridge formed between two bodies and contribute to the force required to pull them apart. Because of the negative pressure, nanoscale water capillary bridges may not be stable. We show that pressure inside a nanoscale water capillary bridge may reach absolute negative value (corresponding to tensile stress). The negative pressure is within the spinodal limit for water suggesting that the water bridge may be in the metastable state. In addition, the size of a nanoscale water capillary bridge is smaller than the critical size for cavitation, indicating that cavitation bubbling is unlikely for nanocontacts..Citation
Nano Letters
Pub Type
Journals
Keywords
adhesion, AFM, capillary bridge, negative pressure
Citation
Issues
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Created February 19, 2017