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Nanodisperse Many-Particle-Systems: Concept, Structure-Property Relationships and Characterization Strategy

Published online by Cambridge University Press:  01 February 2011

Vladimir P. Oleshko
Vladimir P. Oleshko*
Affiliation:
University of Virginia, Department of Materials Science & Engineering, Charlottesville, VA 22904–4745
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Abstract

Nanodisperse many-particle-systems (MPS), often forming compact matter, consist of atomic/molecular nano-sized building units, which interact with each other. The interactions among clusters and with the embedding matrix mainly determine the macroscopic properties of the material. The functional properties of nanostructured matter depend on a number of parameters that describe the single cluster (structure, chemical composition, size and shape), the near-order and far-order effects of a given cluster and which can be modeled using the concept of MPS. The specified parameters have to be considered in a detailed multilevel ultramicroscopic and analytical characterization, and several can be manipulated to tailor new materials with desired optical, electronic or catalytic properties. Such approach provides logical synergism between modeling, engineering and characterization of disperse composite nanomaterials by the combination of analytical electron microscopy and image analysis techniques, as illustrated by examples utilizing chemically stabilized “giant” clusters of noble metals and multifractal percolation nanostructures of Ag filaments.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 788: Symposium L – Continuous Nanophase and Nanostructured Materials , 2003 , L11.39
Copyright
Copyright © Materials Research Society 2004

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