The growth mechanisms of solid solutions crystallising from aqueous solutions

Content Provider	Semantic Scholar
Author	Pina, Carlos M. Putnis, Andrew Astilleros, José Manuel
Copyright Year	2004
Abstract	Abstract In this paper, we present a generalisation of the classical growth rate equations to the case of crystallisation in solid solution–aqueous solution 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 (SS-AS) systems. Finally, we have applied the generalised growth rate equations to the Ba x Sr 1− x SO 4 –H 2 O 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 Ba x Sr 1− x SO 4 –H 2 O SS-AS system.
Starting Page	145
Ending Page	161
Page Count	17
File Format	PDF HTM / HTML
DOI	10.1016/j.chemgeo.2003.12.002
Volume Number	204
Alternate Webpage(s)	http://eprints.ucm.es/14538/1/The_growth_mechanisms_of_solid_solutions_crystallising_from_aqueous_solutions_Pina_et_al_2004_01.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.chemgeo.2003.12.002
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article