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Characterization of Nanoparticle Films and Structures Produced by Hypersonic Plasma Particle Deposition

Published online by Cambridge University Press:  11 February 2011

Christopher R. Perrey ,
Ryan Thompson ,
C. Barry Carter ,
Ashok Gidwani ,
Rajesh Mukherjee ,
Thierry Renault ,
P. H. McMurry ,
J. V. R. Heberlein  and
S. L. Girshick
Christopher R. Perrey
Affiliation:
Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. S.E., Minneapolis, MN 55455
Ryan Thompson
Affiliation:
Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. S.E., Minneapolis, MN 55455
C. Barry Carter*
Affiliation:
Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. S.E., Minneapolis, MN 55455
Ashok Gidwani
Affiliation:
Department of Mechanical Engineering, University of Minnesota, 111 Church Street, S.E., Minneapolis, MN 55455
Rajesh Mukherjee
Affiliation:
Department of Mechanical Engineering, University of Minnesota, 111 Church Street, S.E., Minneapolis, MN 55455
Thierry Renault
Affiliation:
Department of Mechanical Engineering, University of Minnesota, 111 Church Street, S.E., Minneapolis, MN 55455
P. H. McMurry
Affiliation:
Department of Mechanical Engineering, University of Minnesota, 111 Church Street, S.E., Minneapolis, MN 55455
J. V. R. Heberlein
Affiliation:
Department of Mechanical Engineering, University of Minnesota, 111 Church Street, S.E., Minneapolis, MN 55455
S. L. Girshick
Affiliation:
Department of Mechanical Engineering, University of Minnesota, 111 Church Street, S.E., Minneapolis, MN 55455
*
* corresponding author: carter@cems.umn.edu
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Abstract

There is great potential for the use of nanostructures in numerous applications. Investigation of nanoparticle films and structures is an important area of research for the production of nanoengineered devices. However, for these devices to become a reality, a production method that can yield high-rate synthesis of nanostructured powders is necessary. The hypersonic plasma particle deposition (HPPD) process has been shown to be capable of such high-rate production of nanoparticle films and structures. Versatile in its ability to manufacture nanoparticles of different chemistries HPPD also has the capability of in situ particle consolidation and assembly. In this study, chemically diverse films and structures have been produced by HPPD on a variety of substrates. Using novel specimen preparation techniques, these nanoparticles have been characterized by TEM. Fundamental issues of importance have been investigated for both the nanoparticle structure and the constituent nanoparticles. These issues include nanoparticle crystallinity and defect structure. The chemical homogeneity and structural characteristics of the deposition are also investigated. This application of microscopy to aid process development has resulted in insights into the nanoparticle formation process and the dynamics of the HPPD process.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 740: Symposium I – Nanomaterials for Structural Applications , 2002 , I4.6
Copyright
Copyright © Materials Research Society 2003

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