Have a look to Callen : "Thermodynamics and an Introduction to Thermostatistics." (available everywhere). The best way to understand thermodynamics in few days.
R. Defay, I. Prigogine and A. Bellemans (1966) ' Surface Tension and Adsorption' John Wiley&Sons, New York. It is an excellent book, which gives the critical review of the complete spectrum of the theoretical models for the surfaces and interfaces but staying in the domain of reversible thermodynamics. Plus its doesn' t touch the treatment of surfaces of interfaces associated with deformed solids.
I think the first rigorous treatment of the irreversible thermodynamics and kinetics of surfaces and interfaces in deformed solids using the layer model of van der Waals and Baker was presented in our following three comprehensive papers as admitted all of the referees who reviewed them during their publication stages.
Interfacial Phenomena in Metals and Alloys by Lawrence E. Morr is very good text book with applications
Yes ! Callen's book is excellent book written for physicists. For surfaces and interfaces, I recommend every body including me to read the Sections: 1.51-1.62 on surfaces and interfaces 'Thermodynamics' An Advanced Treatment for Chemist and Physicists by E.A. Guggenheim (1959).
Electrochemistry/Modern Electrochemistry by J O' M Bockris and A K N Reddy gives in the most elementary fashion the subject you are trying to understand/learn. Chs 4 and 7 in the older versions deal with surface phenomena.
The best short introductory test on thermodynamics is Physical Chemistry, by G.W. Castellen. Excellent treatment still today , though the last edition is over 30 years old!!
If you wish to know the historical development of thermodynamics of surfaces and interfaces I would recommend to go over the book entitled ''Surface Tension and Adsorption'' by Defay, R, Prigogine, ı and Belleman. ''Thermodynamics 'Advanced Text' by Guggenheim 4th editrion
If you have good back ground in the mathematical analysis and the classical chemical thermodynamics then you should go through the two following papers.