Show simple item record

dc.contributor.authorKarnik, Rohit
dc.contributor.authorDuan, Chuanhua
dc.contributor.authorLu, Ming-Chang
dc.contributor.authorMajumdar, Arun
dc.date.accessioned2012-11-07T19:42:15Z
dc.date.available2012-11-07T19:42:15Z
dc.date.issued2012-03
dc.date.submitted2010-09
dc.identifier.issn0027-8424
dc.identifier.issn1091-6490
dc.identifier.urihttp://hdl.handle.net/1721.1/74589
dc.description.abstractCavitation, known as the formation of vapor bubbles when liquids are under tension, is of great interest both in condensed matter science as well as in diverse applications such as botany, hydraulic engineering, and medicine. Although widely studied in bulk and microscale-confined liquids, cavitation in the nanoscale is generally believed to be energetically unfavorable and has never been experimentally demonstrated. Here we report evaporation-induced cavitation in water-filled hydrophilic nanochannels under enormous negative pressures up to -7 MPa. As opposed to receding menisci observed in microchannel evaporation, the menisci in nanochannels are pinned at the entrance while vapor bubbles form and expand inside. Evaporation in the channels is found to be aided by advective liquid transport, which leads to an evaporation rate that is an order of magnitude higher than that governed by Fickian vapor diffusion in macro- and microscale evaporation. The vapor bubbles also exhibit unusual motion as well as translational stability and symmetry, which occur because of a balance between two competing mass fluxes driven by thermocapillarity and evaporation. Our studies expand our understanding of cavitation and provide new insights for phase-change phenomena at the nanoscale.en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-AC02-05-CH11231)en_US
dc.description.sponsorshipCenter for Scalable and Integrated Nanomanufacturing (DMI-0327077)en_US
dc.description.sponsorshipNational Science Foundation (U.S.). Center of Integrated Nanomechanical Systems (NSF EEC- 0425914)en_US
dc.language.isoen_US
dc.publisherNational Academy of Sciencesen_US
dc.relation.isversionofhttp://dx.doi.org/10.1073/pnas.1014075109en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourcePNASen_US
dc.titleEvaporation-induced cavitation in nanofluidic channelsen_US
dc.typeArticleen_US
dc.identifier.citationDuan, C. et al. “Evaporation-induced Cavitation in Nanofluidic Channels.” Proceedings of the National Academy of Sciences 109.10 (2012): 3688–3693. ©2012 by the National Academy of Sciencesen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.mitauthorKarnik, Rohit
dc.relation.journalProceedings of the National Academy of Sciencesen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsDuan, C.; Karnik, R.; Lu, M.-C.; Majumdar, A.en
dc.identifier.orcidhttps://orcid.org/0000-0003-0588-9286
dspace.mitauthor.errortrue
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record