Simulation Of Electrocodeposition
Author(s)
J. Lee & J. B. Talbot
Abstract
The current distributions for various limiting conditions for particle incorporation
during electrodeposition of a metal film were numerically investigated. The evolution
of a metallic interface is governed by the local current density that is affected
by the presence of a non-conducting particle. This study focused on the shape evolution
during entrapment of a particle by the growing metal film by mathematical
modeling and simulation of the process. The level set method was used to track the
moving interface as it grew around the particle, and the governing equation was
solved by a finite element method.
Keywords: electrocodeposition, current distribution, simulation.
1 Introduction
Electrocodeposition is the process in which particles are occluded in the plated
metallic film; thus, metallic matrix composite films are produced which have been
used to enhance wear and corrosion resistance. Electrocodeposition is a function
of many process variables, such as bath composition, hydrodynamics, current density,
particle characteristics, etc. Stojak et al. [1] have reviewed the general process
mechanisms and various models proposed for electrocodeposition. However, the
physical phenomenon of electrocodeposition is not well understood. Our experimental
research to date has been primarily focused on electrocodeposition under
controlled hydrodynamics as a function of process variables, such as current density
and bath composition, for copper-alumina composites [2].
The growth of an electrodeposited film along the electrode is controlled by the
local current density affected by the presence of an insulating particle during electrocodeposition.
The surface and concentration overpotentials are related to the
current density normal to the cathode surface. A change in current density affects
Keywords
electrocodeposition, current distribution, simulation.
Related Book
Other papers in this volume
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