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Entropy and Melting in Small Particles

Published online by Cambridge University Press:  28 February 2011

P. M. Ajayan  and
L. D. Marks
P. M. Ajayan
Affiliation:
Department of Materials Science and EngineeringNorthwestern University, Evanston, IL-60208.
L. D. Marks
Affiliation:
Department of Materials Science and EngineeringNorthwestern University, Evanston, IL-60208.
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Abstract

We describe theoretical results for part of the Gibbs free energy surface as a function of shape and temperature for small particles. We predict the existence of true ‘quasi-melting’ at temperatures much below the conventional melting points and also phase transitions between different stable forms as the temperature is varied. A phase diagram for small particles is constructed for the first time, showing the stability ranges for different particle shapes as a function of size and temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 111: Symposium O – Microstructure and Properties of Catalysts , 1987 , 53
Copyright
Copyright © Materials Research Society 1988

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