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On the surface configuration of solids in relation to the surface free enthalpy excess and its consequences in phase transitions

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Il Nuovo Cimento D

Summary

In previous studies the average number of neighbors (n avrg) of an atom in the surface phase was found to increase by about (5÷20)% between 0 K and the melting temperature for all solid chemical elements in the periodic table. This increment makes the solid surface “geometrically impossible” to exist at the melting temperature. The latter results in the collapse of crystal structure, beginning with the formation of liquid in the surface layers. Ratio of critical and melting temperature is also discussed.

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Author information

Authors and Affiliations

  1. Division of Chemistry and Chemical Engineering, California Institute of Technology, Mail Code 127-72, 91125, Pasadena, CA, USA

    S. Kristyan

  2. American Cyanamid, Research and Development, 08543-0400, Princeton, NJ, USA

    J. Szamosi

  3. Department of Chemistry, Baylor University, 76798, Waco, TX, USA

    J. A. Olson

Authors
  1. S. Kristyan
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  2. J. Szamosi
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  3. J. A. Olson
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Kristyan, S., Szamosi, J. & Olson, J.A. On the surface configuration of solids in relation to the surface free enthalpy excess and its consequences in phase transitions. Il Nuovo Cimento D 15, 815–827 (1993). https://doi.org/10.1007/BF02482458

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  • DOI: https://doi.org/10.1007/BF02482458

PACS 64.70

PACS 64.70.Dv

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