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In-Situ Electron Microscopy Studies of The Behavior of Metal Particles on Ceramic Substrates

Published online by Cambridge University Press:  15 February 2011

R. Terry ,
K. Baker  and
Nelly M. Rodriguez
R. Terry
Affiliation:
Catalytic Materials Center, Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
K. Baker
Affiliation:
Catalytic Materials Center, Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
Nelly M. Rodriguez
Affiliation:
Catalytic Materials Center, Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Abstract

This paper is devoted to a discussion of how the information derived from the application of in-situ transmission electron microscopy can be used to gain a unique insight into the manner by which various factors dictate the morphological characteristics of metal particles on a variety of ceramic substrates. In this context, we have used the technique to examine the influence of the strength of the metal-support interaction on the mode of sintering of small particles, and how the chemical nature of the gas environment can induce significant changes in the shapes of the metal particles in a given system. Attention is also focussed on the wetting behavior of metal particles dispersed on graphite when reacted in oxygen and how this aspect impacts on their subsequent mode of catalytic attack.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 357: Symposium C – Structure and Properties of Interfaces in Ceramics , 1994 , 11
Copyright
Copyright © Materials Research Society 1995

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