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Monte Carlo Simulation of Gas Phase Particle Formation and Sintering

Published online by Cambridge University Press:  26 February 2011

M. Kamal Akhtar ,
S. E. Pratsinis  and
G. G. Lipscomb
M. Kamal Akhtar
Affiliation:
Department of Chemical Engineering, Center for Aerosol Processes, University of Cincinnati, Cincinnati, OH 45221.
S. E. Pratsinis
Affiliation:
Department of Chemical Engineering, Center for Aerosol Processes, University of Cincinnati, Cincinnati, OH 45221.
G. G. Lipscomb
Affiliation:
Department of Chemical Engineering, Center for Aerosol Processes, University of Cincinnati, Cincinnati, OH 45221.
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Abstract

A Monte Carlo model has been developed to describe the gas phase formation and sintering of nanoclusters. Sintering was incorporated into the model by modifying Kadanoff's algorithm [1] for random particle walks on the surface of the cluster. The effect of restructuring and sintering on cluster-cluster aggregation have been investigated via 2d simulations. In the initial stages the sintering process results in clusters which are compact on small length scales. As time progresses and the clusters become larger, the sintering process slows down and the fractal dimension of the clusters is decreased. The model shows the effect of time and temperature on the specific surface area and size distribution of clusters.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 278: Symposium W – Computational Methods in Materials Science , 1992 , 261
Copyright
Copyright © Materials Research Society 1992

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References

[1] Kadanoff, L. P., J. Stat. Phys., 39, 267 (1985).CrossRefGoogle Scholar
[2] Karch, J., Birringer, R. and Gleiter, H., Nature, 330, 556 (1987).Google Scholar
[3] Ulrich, G. D. and Riehl, J. W., J. Coll. Intf. Sci., 87, 257 (1982).Google Scholar
[4] Weimer, A. W., Moore, W. G., Roach, R. P., Haney, C. N. and Rafaniello, W., AIChE J. 37, 759 (1991).Google Scholar
[5] Xiong, Y. and Pratsinis, S. E., J. Aerosol Sci., 22, s199 (1991).Google Scholar
[6] Metropolis, N. A., Rosenbluth, A. W., Rosenbluth, M. N., Teller, A. H. and Teller, E., J. Chem. Phys., 21, 1087 (1953).CrossRefGoogle Scholar
[7] MacPherson, A. K., Atomic Mechanics of Solids, North-Holland, Amsterdam (1990).Google Scholar
[8] Adamson, A. W., Physical Chemistry of Surfaces, John Wiley and Sons, New York (1976).Google Scholar
[9] Meakin, P., Phy. Rev. Lett., 51, 1119 (1983).Google Scholar
[10] Botet, R. and Jullien, R., Phase Transitions, 24–26 691 (1990).Google Scholar
[11] Weber, A. P., Baltensperger, U., Gaggeler, H. W., Tobler, L., Keil, R. and Schmidt-Ott, A., J. Aerosol Sci., 22, s257 (1991).Google Scholar