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Experimental investigation of the initial regime in fingering electrodeposition : Dispersion relation and velocity measurements

Title data

Schröter, Matthias ; Kassner, Klaus ; Rehberg, Ingo ; Claret, Josep ; Sagués, Francesc:
Experimental investigation of the initial regime in fingering electrodeposition : Dispersion relation and velocity measurements.
In: Physical Review E. Vol. 65 (April 2002) Issue 4 . - Art. Nr. 041607.
ISSN 1550-2376
DOI: https://doi.org/10.1103/PhysRevE.65.041607

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Abstract in another language

Recently a fingering morphology, resembling the hydrodynamic Saffman-Taylor instability, was identified in the quasi-two-dimensional electrodeposition of copper. We present here measurements of the dispersion relation of the growing front. The instability is accompanied by gravity-driven convection rolls at the electrodes, which are examined using particle image velocimetry. While at the anode the theory presented by Chazalviel et al. [J. Electroanal. Chem. 407, 61 (1996)] describes the convection roll, the flow field at the cathode is more complicated because of the growing deposit. In particular, the analysis of the orientation of the velocity vectors reveals some lag of the development of the convection roll compared to the finger envelope.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Electrodeposition, electroplating; Patterns
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 05 Oct 2018 09:14
Last Modified: 30 Jan 2019 12:11
URI: https://eref.uni-bayreuth.de/id/eprint/42988