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Microstructure of Agglomerates of Nanometer Particles

Published online by Cambridge University Press:  15 February 2011

Alfred P. Weber ,
James D. Thorne  and
Sheldon K. Friedlander
Alfred P. Weber
Affiliation:
Chemical Engineering Department, University of California, Los Angeles, 405 Hilgard Ave. Los Angeles, CA 90024
James D. Thorne
Affiliation:
Chemical Engineering Department, University of California, Los Angeles, 405 Hilgard Ave. Los Angeles, CA 90024
Sheldon K. Friedlander
Affiliation:
Chemical Engineering Department, University of California, Los Angeles, 405 Hilgard Ave. Los Angeles, CA 90024
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Abstract

The microstructure of an agglomerate can be characterized by the coordination number. The relationship between the fractal dimension and the coordination number of agglomerates of nanometer particles was investigated in experiments and computer simulations. The results for silver agglomerates formed by laser ablation agreed well with the simulations. The coordination number is low for low density fractals because of the large fraction of surface particles which have fewer bonds. The sensitivity of the coordination number to the fractal dimension increases with increasing fractal dimension.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 380: Symposium D – Materials–Fabrication and Patterning at the Nanoscale , 1995 , 87
Copyright
Copyright © Materials Research Society 1995

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References

Meakin, P. Phys. Rev. A 27, 1495 (1983).Google Scholar
Weber, A.P., Friedlander, S.K. Mater Res. Soc. Symp. Proc. 351, 331 (1994).Google Scholar