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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

The Thermodynamics of Solid–Solid Interfaces in Systems of Fixed Mass

Stephen Fletcher A
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A Department of Chemistry, Loughborough University, Loughborough LE11 3TU, UK. Email: stephen.fletcher@lboro.ac.uk

Australian Journal of Chemistry 58(4) 302-305 https://doi.org/10.1071/CH05039
Submitted: 3 February 2005  Accepted: 2 March 2005   Published: 5 April 2005

Abstract

The textbook approach to interfacial excess quantities, due to Gibbs, is valid only at fixed volume. In the present work we develop an alternative approach to interfacial excess quantities, valid at fixed mass. For solid–solid interfaces this has several advantages over the Gibbs treatment such as (a) non-zero interfacial excess volumes appear naturally in the treatment, (b) analogues of the bulk-phase Maxwell relations are readily obtained, and (c) formulae for the pressure and temperature dependence of the interfacial tension are derived in a transparent way.


References


[1]   J. W. Gibbs, The Collected Works, Vol. I, Thermodynamics 1928 (Longmans, Green, and Co.: New York, NY).

[2]   R. Shuttleworth, Proc. Phys. Soc. (London) 1950, A63,  444.
         
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