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Capillary Contact Angle in a Completely Wet Groove

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    SYSNO ASEP0435408
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleCapillary Contact Angle in a Completely Wet Groove
    Author(s) Parry, A.O. (GB)
    Malijevský, Alexandr (UCHP-M) RID, ORCID, SAI
    Rascón, C. (ES)
    Source TitlePhysical Review Letters - ISSN 0031-9007
    Roč. 113, č. 14 (2014), s. 146101
    Number of pages5 s.
    Languageeng - English
    CountryUS - United States
    Keywordsphase equilibria ; wetting transitions ; narrow pores
    Subject RIVCF - Physical ; Theoretical Chemistry
    R&D ProjectsGA13-09914S GA ČR - Czech Science Foundation (CSF)
    Institutional supportUCHP-M - RVO:67985858
    UT WOS000343666500009
    DOI10.1103/PhysRevLett.113.146101
    AnnotationWe consider the phase equilibria of a fluid confined in a deep capillary groove of width L with identical side walls and a bottom made of a different material. All walls are completely wet by the liquid. Using density functional theory and interfacial models, we show that the meniscus separating liquid and gas phases at two phase capillary coexistence meets the bottom capped end of the groove at a capillary contact angle theta(cap)(L) which depends on the difference between the Hamaker constants. If the bottom wall has a weaker wall-fluid attraction than the side walls, then theta(cap) > 0 even though all the isolated walls are themselves completely wet.
    WorkplaceInstitute of Chemical Process Fundamentals
    ContactEva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
    Year of Publishing2015
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