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The 41st William Blum Lecture, Mathematical Modeling of Electrodeposition

Mathematical modeling can be used to predict things of interest to electroplaters and surface finishers. For example, one can use mathematical modeling to predict the current density distribution on a piece to be plated. This distribution will be a function of the geometrical setup electrodes in the bath and the solution properties of the bath. This feature of mathematical modeling could be used to predict the optimum placement of the piece and other structures in the bath that would produce the desired product. Another use of mathematical modeling is to predict the composition of species in a plating bath, which may be useful for determining the effect of complexing agents on the concentrations of principal species in a plating bath, for example. Mathematical modeling can also be used to predict the composition of a plated alloy as a function of the concentration of species in the bath and the operating conditions of the bath. In addition, mathematical modeling can be used to predict the effect of a specified duty cycle for pulse plating. Some aspects of mathematical modeling of electrodeposition and its uses are presented.

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