2012
DOI: 10.1103/physreve.86.051612
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Nature of inclined growth in thin-layer electrodeposition under uniform magnetic fields

Abstract: Electrochemical deposition (ECD) in thin cells in a vertical position relative to gravity, subject to an external uniform magnetic field, yields a growth pattern formation with dense branched morphology with branches tilted in the direction of the magnetic force. We study the nature of the inclined growth through experiments and theory. Experiments in ECD, in the absence of magnetic forces, reveal that a branch grows by allowing fluid to penetrate its tip and to be ejected from the sides through a pair of symm… Show more

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Cited by 3 publications
(5 citation statements)
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“…Buoyant flow structures have been experimentally observed near ion selective interfaces [19,[23][24][25]. Their significant impact on the limiting current i lim [4, 5, 16-18, 26, 27] and the morphology of the electrodeposits [23,25,28,29] have been reported in low voltage range experiments for decades. In fact electrochemical experiments have been also used to model the buoyancy driven flow in the Rayleigh-Benard (RB) convection problem.…”
mentioning
confidence: 99%
“…Buoyant flow structures have been experimentally observed near ion selective interfaces [19,[23][24][25]. Their significant impact on the limiting current i lim [4, 5, 16-18, 26, 27] and the morphology of the electrodeposits [23,25,28,29] have been reported in low voltage range experiments for decades. In fact electrochemical experiments have been also used to model the buoyancy driven flow in the Rayleigh-Benard (RB) convection problem.…”
mentioning
confidence: 99%
“…En estos sistemas, el modelo describe la difusión, convección y migración de iones en un fluido sujeto a un campo eléctrico y otro magnético externo. El modelo matemático consiste en las ecuaciones de Nernst-Planck para cada una de las especies iónicas, la ecuación de Poisson para el potencial y la ecuación de Navier Stokes para el solvente con sus adecuadas condiciones iníciales y de contorno (4,11) . El modelo computacional resuelve el sistema anterior en su versión 2D en un plano vertical paralelo a la gravedad (cátodo arriba y ánodo abajo) con una malla bidimensional uniforme utilizando diferencias finitas y métodos de relajación estándar.…”
Section: Modelo Numéricounclassified
“…Situación similar a la hallada en los experimentos (figura 2) En la figura 4 se muestra el gradiente de concentración de cationes en presencia de campos magnéticos positivo y negativo respectivamente en presencia de un spike inclinado. En cada figura se observa una zona de descenso de concentración de cationes entre el depósito y el electrodo predicha teóricamente (4,9,10) .…”
Section: Modelo Numéricounclassified
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