%0 Journal Article
%A Pina Martínez, Carlos Manuel
%A Putnis, Andrew
%A Astilleros García-Monge, José Manuel
%T The growth mechanisms of solid solutions crystallising fromaqueous solutions
%D 2004
%@ 0009-2541
%U https://hdl.handle.net/20.500.14352/49800
%X In this paper, we present a generalisation of the classical growth rate equations to the case of crystallisation in solidsolution–aqueous solution (SS-AS) systems. In these new equations, basic growth parameters, interfacial free energy andsupersaturation are functions of the solid composition. Therefore, each equation describes, for a given aqueous solution, agrowth rate distribution as a function of the solid composition. Different crystal growth models such as two-dimensionalnucleation or spiral growth mechanisms provide different growth rate distributions. We have studied the general behaviour ofgrowth rate equations in solid solution–aqueous solution (SS-AS) systems. Finally, we have applied the generalised growth rateequations to the BaxSr1xSO4–H2O SS-AS system. It allowed us to determine relationships between growth mechanisms andsolid composition in such a model system. The result of our calculations were discussed and compared with previousexperimental work on the BaxSr1xSO4–H2O SS-AS system.
%~