Abstract
Atomic force microscopy (AFM) has been used to study dissolution of the cleaved CaCO3(1014) surface in clean and impurity containing aqueous environments. In the clean solution, dissolution was found to occur by retreat of steps and creation of rhombohedral pits on a surface. Dissolution is anisotropie with two different step velocities differing by a factor of 2.3, resulting from different atomic step structures. Dissolution is partially changed after adding impurities in the solution via rounding of the fastest dissolution corner of rhombohedral pits and slowing down the step velocity in that direction. The role of impurity on dissolution is discussed in terms of preferential adsorption of impurities on kink sites.
Similar content being viewed by others
References
J.M. Zachara, C.E. Cowan, C.T. Resch, Geochim. Cosmochim. Acta. 55, 1549, (1991).
P. Bennema, J. Crys. Growth, 5, 29, (1969).
C.S. Kohli and M. B. Ives, J. Crys. Growth, 16, 123, (1972).
Y. Liang et al, to be published.
L. Chou, R.M. Garrels, and R. Wollast, Chem. Goelogy, 78, 269, (1989).
J. P. Hirth and G. M. Pound, J. Chem. Phys. 26, 1216, (1957).
J. J. Gilman, W. G. Johnston, and G. W. Sears, J. Appl. Phys. 29, 747, (1958).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Liang, Y., Baer, D.R. & Lea, A.S. Dissolution of CaCO3(1014) Surface. MRS Online Proceedings Library 355, 409–414 (1994). https://doi.org/10.1557/PROC-355-409
Published:
Issue Date:
DOI: https://doi.org/10.1557/PROC-355-409