Transport kinetics of wetting layers

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

Transport kinetics of wetting layers

Dateien

166_europhyslett_1995.pdfGröße: 2.81 MBDownloads: 496

Datum

1995

Autor:innen

Herminghaus, Stephan

Paatzsch, Thomas

Häcker, T.

Leiderer, Paul

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Europhysics Letters. 1995, 31(3), pp. 157-162. Available under: doi: 10.1209/0295-5075/31/3/006

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 vapour phase, viscous flow within the wetting layer, or surface diffusion. In either ease, 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

Zitieren

ISO 690

HERMINGHAUS, Stephan, Thomas PAATZSCH, T. HÄCKER, Paul LEIDERER, 1995. Transport kinetics of wetting layers. In: Europhysics Letters. 1995, 31(3), pp. 157-162. Available under: doi: 10.1209/0295-5075/31/3/006

BibTex

@article{Herminghaus1995Trans-9033,
  year={1995},
  doi={10.1209/0295-5075/31/3/006},
  title={Transport kinetics of wetting layers},
  number={3},
  volume={31},
  journal={Europhysics Letters},
  pages={157--162},
  author={Herminghaus, Stephan and Paatzsch, Thomas and Häcker, T. and Leiderer, Paul}
}

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