Publication: The growth mechanisms of solid solutions crystallising from
aqueous solutions
Loading...
Official URL
Full text at PDC
Publication Date
2004
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Science B.V., Amsterdam.
Citations
Exportar
Abstract
In this paper, we present a generalisation of the classical growth rate equations to the case of crystallisation in solid
solution–aqueous solution (SS-AS) systems. In these new equations, basic growth parameters, interfacial free energy and
supersaturation are functions of the solid composition. Therefore, each equation describes, for a given aqueous solution, a
growth rate distribution as a function of the solid composition. Different crystal growth models such as two-dimensional
nucleation or spiral growth mechanisms provide different growth rate distributions. We have studied the general behaviour of
growth rate equations in solid solution–aqueous solution (SS-AS) systems. Finally, we have applied the generalised growth rate
equations to the BaxSr1xSO4–H2O SS-AS system. It allowed us to determine relationships between growth mechanisms and
solid composition in such a model system. The result of our calculations were discussed and compared with previous
experimental work on the BaxSr1xSO4–H2O SS-AS system.