Alloy characterization by selectivity constants

The dependence of the alloy composition (mole fraction jc ) on the electrolyte concentration ratio CpJ Cp + Cg) for different combinations of ba values is shown in 

The classification of Brenner is now represented by different values of the selectivity constants. The composition reference line introduced by Brenner is given by AB BA = 1- If the component A is the less noble component, curve 5 would represent normal and curve 4 anomalous co-deposition. Curve 3 represents segregation and curve 2 intermetallic compound formation AB. 

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