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Phys. Rev. E 66, 026307 (2002) [6 pages]

Influence of ohmic heating on the flow field in thin-layer electrodeposition

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Matthias Schröter* and Klaus Kassner
Fakultät für Naturwissenschaften, Otto-von-Guericke Universität Magdeburg, Postfach 4120, D-39016 Magdeburg, Germany

Ingo Rehberg
Physikalisches Institut, Universität Bayreuth, D-95440 Bayreuth, Germany

Josep Claret and Francesc Sagués
Departament de Química-Física, Universitat de Barcelona, Martí i Franquès 1, E-08028 Barcelona, Spain

Received 10 April 2002; published 21 August 2002

In thin-layer electrodeposition the dissipated electrical energy leads to a substantial heating of the ion solution. We measured the resulting temperature field by means of an infrared camera. The properties of the temperature field correspond closely with the development of the concentration field. In particular, we find that the thermal gradients at the electrodes act similar to a weak additional driving force to the convection rolls driven by concentration gradients.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.66.026307
DOI:
10.1103/PhysRevE.66.026307
PACS:
47.27.Te, 87.63.Hg, 81.15.Pq

*Electronic address: matthias.schroeter@physik.uni-magdeburg. de