%0 Journal Article
%A Pina Martínez, Carlos Manuel
%T Inhibition of growth in solid solution–aqueous solution systems bynon-incorporating impurities
%D 2011
%@ 0039-6028
%U https://hdl.handle.net/20.500.14352/42031
%X Crystal growth inhibition by non-incorporating impurities has been described and quantified since 1958 bythe so-called step pinning model by Cabrera and Vermilyea [1]. In the original model, as well as in its recentimprovements by Weaver et al. in 2006 and 2007 [2,3], only the inhibition by the adsorption of impurities oncrystal surfaces with fixed compositions is considered. However, most of the crystals found in nature are solidsolutions with more or less wide chemical variability. Therefore, in order to provide more realistic models ofcrystal growth inhibition in natural systems, it is fundamental to study in detail the inhibition of surfaces ofsolid solutions by non-incorporating impurities. In this paper, the Cabrera–Vermilyea model has beengeneralised for the case of growth inhibition in solid solution–aqueous solution (SS–AS) systems. Thisgeneralisation was made by considering that supersaturation and the physicochemical properties of the solidsolutions are functions of the solid composition. The main implication of the model is that a progressiveinhibition of growth of a solid solution by increasing the concentration of an adsorbed impurity results incompositional changes on the growing surfaces.
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