Shaping the Interface – Interactions Between Confined Water and the Confining Solid
The thermodynamics and kinetics of stressed solids with aqueous solutions in the grain interfaces are summarized. The main focus is on pressure solution and the connection to force of crystallization (crystallization pressure) is shown. The largest driving force of pressure solution, the work term, is linear in stress, all other contributions to the driving force are more than 3 orders of magnitude smaller. The minor driving forces (strain energy, surface tension, surface charges) are important for the transformation and stability of the interface structure and thereby the kinetics of pressure solution. Interface structure and stability may change strain rates up to 7 orders of magnitude.
KeywordsFluid Film Pressure Solution Transition State Theory Helmholtz Energy Crystallization Pressure
I wish to thank Jean-Pierre Gratier and Francois Renard with whom I have worked for years on these topics and who have pushed me to go critically through this theory.
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