General principles of the crystallization of nanostructured disperse systems

Regularities of the self-organization of ensembles of nanoparticles into crystalline structures in metal lyosols are studied by the Brownian dynamics. Van der Waals, elastic, and electrostatic interparticle interactions, as well as the action of dissipative and fluctuation forces are taken into acco...

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Bibliographic Details
Published in:Colloid journal of the Russian Academy of Sciences 2009-06, Vol.71 (3), p.313-328
Main Authors: Karpov, S. V., Isaev, I. L., Gavrilyuk, A. P., Gerasimov, V. S., Grachev, A. S.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Polymer Sciences
Surfaces and Interfaces
Thin Films
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Summary:Regularities of the self-organization of ensembles of nanoparticles into crystalline structures in metal lyosols are studied by the Brownian dynamics. Van der Waals, elastic, and electrostatic interparticle interactions, as well as the action of dissipative and fluctuation forces are taken into account in the model. Pair interaction potentials for the polydisperse ensembles of particles are analyzed and the correlations between the pattern of potential curves and the type of formed structures (from crystalline to fractal) are revealed. The effect of interparticle tangential friction on the degree of ordering of formed structures is studied. It is demonstrated that this factor can determine the degree of ordering of nanoparticle aggregates. An essentially new approach to describing elastic interactions of nanoparticles of polymer-containing sols is implemented.
ISSN:1061-933X
1608-3067
DOI:10.1134/S1061933X09030053