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Surface Dynamics of Small Particles

Published online by Cambridge University Press:  26 February 2011

P.M Ajayan
Affiliation:
Department of Materials Science and Engineering
L.D Marks
Affiliation:
Department of Materials Science and Engineering
J. Dundurs
Affiliation:
Department of Civil Engineering Northwestern University, Evanston
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Abstract

We investigate the energetics of structure changes in small particles, a phenomena recently observed by high resolution electron microscopy. The energy variations during transformations from a single crystal to symmetric and asymmetric decahedral multiply twinned particle (MTP) structures are evaluated. We examine briefly a few possible energy gain mechanisms during the particle-beam interaction which enable the particles to cross the activation energy barriers and fluctuate between various local energy minima of the morphological potential energy surface.

Type
Research Article
Copyright
Copyright © Materials Research Society 1987

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References

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