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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la503974z
|2 doi
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|a pubmed24n0809.xml
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|a (NLM)25329011
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|a DE-627
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|a eng
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| 100 |
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|a Becker, Stefan
|e verfasserin
|4 aut
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|a Contact angle of sessile drops in Lennard-Jones systems
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 21.05.2015
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|a Date Revised 18.11.2014
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|a published: Print-Electronic
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|a ErratumIn: Langmuir. 2018 Mar 13;34(10):3374. - PMID 29494153
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|a Citation Status PubMed-not-MEDLINE
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|a Molecular dynamics simulations are used for studying the contact angle of nanoscale sessile drops on a planar solid wall in a system interacting via the truncated and shifted Lennard-Jones potential. The entire range between total wetting and dewetting is investigated by varying the solid-fluid dispersive interaction energy. The temperature is varied between the triple point and the critical temperature. A correlation is obtained for the contact angle in dependence of the temperature and the dispersive interaction energy. Size effects are studied by varying the number of fluid particles at otherwise constant conditions, using up to 150,000 particles. For particle numbers below 10,000, a decrease of the contact angle is found. This is attributed to a dependence of the solid-liquid surface tension on the droplet size. A convergence to a constant contact angle is observed for larger system sizes. The influence of the wall model is studied by varying the density of the wall. The effective solid-fluid dispersive interaction energy at a contact angle of θ = 90° is found to be independent of temperature and to decrease linearly with the solid density. A correlation is developed that describes the contact angle as a function of the dispersive interaction, the temperature, and the solid density. The density profile of the sessile drop and the surrounding vapor phase is described by a correlation combining a sigmoidal function and an oscillation term
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|a Journal Article
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|a Urbassek, Herbert M
|e verfasserin
|4 aut
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|a Horsch, Martin
|e verfasserin
|4 aut
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|a Hasse, Hans
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 30(2014), 45 vom: 18. Nov., Seite 13606-14
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:30
|g year:2014
|g number:45
|g day:18
|g month:11
|g pages:13606-14
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|u http://dx.doi.org/10.1021/la503974z
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