Observation of Enhanced Viscosity of Wetting Layers of small Molecules

Herminghaus, Stephan; Paatzsch, Thomas; Häcker, T.; Leiderer, Paul

Observation of Enhanced Viscosity of Wetting Layers of small Molecules

Dateien

172_procofrencontr_1995.pdfGröße: 1.29 MBDownloads: 81

Datum

1995

Autor:innen

Herminghaus, Stephan

Paatzsch, Thomas

Häcker, T.

Leiderer, Paul

URI (zitierfähiger Link)

http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-30234

Link zur Lizenz

Attribution-NonCommercial-NoDerivs 2.0 Generic

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Beitrag zu einem Konferenzband

Publikationsstatus

Published

Erschienen in

Short and long chains at interfaces : proceedings of the XXXth Rencontres de Moriond, Villars sur Ollon, Switzerland, 1995. 1995, pp. 301-306

Zusammenfassung

The transport kinetics of wetting layers of ethanol and propane on silver substrates is investigated by monitoring the temporal decay of pulsed laser induced spatial thickness modulations. Our method allows to distinguish between different transport mechanisms, such as direct exchange with the vapor phase, viscous flow within the wetting layer, or surface diffusion. In either case, the activation energy found for the lateral transport points to viscous flow as the dominant mechanism in the investigated temperature range. For very thin films, the flow proceeds considerably slower than expected from bulk viscosity data. This suggests that the proximity of the substrate influences the morphology of the liquid, giving rise to an enhanced effective viscosity.

Fachgebiet (DDC)

530 Physik

Konferenz

Short and long chains at interfaces, 1995, Villars sur Ollon, Switzerland

Zitieren

ISO 690

HERMINGHAUS, Stephan, Thomas PAATZSCH, T. HÄCKER, Paul LEIDERER, 1995. Observation of Enhanced Viscosity of Wetting Layers of small Molecules. Short and long chains at interfaces. Villars sur Ollon, Switzerland, 1995. In: Short and long chains at interfaces : proceedings of the XXXth Rencontres de Moriond, Villars sur Ollon, Switzerland, 1995. 1995, pp. 301-306

BibTex

@inproceedings{Herminghaus1995Obser-4694,
  year={1995},
  title={Observation of Enhanced Viscosity of Wetting Layers of small Molecules},
  booktitle={Short and long chains at interfaces : proceedings of the XXXth Rencontres de Moriond, Villars sur Ollon, Switzerland, 1995},
  pages={301--306},
  author={Herminghaus, Stephan and Paatzsch, Thomas and Häcker, T. and Leiderer, Paul}
}

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Universitätsbibliographie

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