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Shape of growth hillocks produced by impurity uptake

Marco Rubbo
Shape of growth hillocks produced by impurity uptake (in Mineral surface reactivity, Gilberto Artioli and Pierfranco Lattanzi)
European Journal of Mineralogy (May 2007) 19 (3): 333-338


Developing classical works, we propose a model to describe the evolution with time, of the profile of a growing hillock whose initial shape is known. The profile is the envelope of the steps originated at a dislocation line, so its evolution is related to the movement of the steps as determined by the surface diffusion followed by the integration of the growth units in the kinks. When impurities poison the kinks the profile is determined also by the kinetics of impurities adsorption. In the model the kinetic processes are described in terms of several parameters. An example of a calculated profile is presented and discussed. It is suggested that simulations performed varying the values of the parameters can help to understand hillocks morphology and to asses the growth mechanism.

ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 19
Serial Issue: 3
Title: Shape of growth hillocks produced by impurity uptake
Title: Mineral surface reactivity
Author(s): Rubbo, Marco
Author(s): Artioli, Gilberto
Author(s): Lattanzi, Pierfranco
Affiliation: Universita di Torino, Dipartimento di Scienze Mineralogiche e Petrologiche, Turin, Italy
Affiliation: Universita di Padova, Padua, Italy
Pages: 333-338
Published: 200705
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 13
Accession Number: 2007-075953
Categories: General mineralogy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Secondary Affiliation: Universita di Cagliari, ITA, Italy
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Schweizerbart'sche Verlagsbuchhandlung. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200735
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