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@ARTICLE{Mser:173413,
      author       = {Müser, Martin},
      title        = {{S}ingle-asperity contact mechanics with positive and
                      negative work of adhesion: {I}nfluence of finite-range
                      interactions and a continuum description for the squeeze-out
                      of wetting fluids},
      journal      = {Beilstein journal of nanotechnology},
      volume       = {5},
      issn         = {2190-4286},
      address      = {Frankfurt, M.},
      publisher    = {Beilstein-Institut zur Förderung der Chemischen
                      Wissenschaften},
      reportid     = {FZJ-2014-06823},
      pages        = {419 - 437},
      year         = {2014},
      abstract     = {In this work, single-asperity contact mechanics is
                      investigated for positive and negative work of adhesion
                      Δγ. In the latter case, finite-range repulsion acts in
                      addition to hard-wall constraints. This constitutes a
                      continuum model for a contact immersed in a strongly wetting
                      fluid, which can only be squeezed out in the center of the
                      contact through a sufficiently large normal load FN. As for
                      positive work of adhesion, two stable solutions can coexist
                      in a finite range of normal loads. The competing solutions
                      can be readily interpreted as contacts with either a
                      load-bearing or a squeezed-out fluid. The possibility for
                      coexistence and the subsequent discontinuous wetting and
                      squeeze-out instabilities depend not only on the Tabor
                      coefficient μT but also on the functional form of the
                      finite-range repulsion. For example, coexistence and
                      discontinuous wetting or squeeze-out do not occur when the
                      repulsion decreases exponentially with distance. For
                      positive work of adhesion, the normal displacement mainly
                      depends on FN, Δγ, and μT but – unlike the contact area
                      – barely on the functional form of the finite-range
                      attraction. The results can benefit the interpretation of
                      atomic force microscopy in liquid environments and the
                      modeling of multi-asperity contacts.},
      cin          = {JSC},
      ddc          = {620},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {411 - Computational Science and Mathematical Methods
                      (POF2-411)},
      pid          = {G:(DE-HGF)POF2-411},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000334373100001},
      doi          = {10.3762/bjnano.5.50},
      url          = {https://juser.fz-juelich.de/record/173413},
}