The linear coupling of elastic deformations and solute diffusion in solids produces effects such as strain-induced diffusion and solute-induced dilatation. While this coupling also affected changes in certain material properties, many important physical effects must be described within a framework that included the nonlinear coupling of the diffusion and deformation fields. The nonlinear coupling of these

fields was developed using a continuum approach based in thermodynamics that considers the possible effects that might arise in elastic solids containing a mobile solute species. Among others, this coupling produces effects including point defect-related modulus variations, harmonic generation in acoustic waves, and diffusion in the presence of transient, equi-volume strain fields.

Dynamic Effects in Nonlinearly Coupled Elastic Deformation and Diffusion Fields in Solids. J.B.Spicer, Y.Dikmelik: Journal of Applied Physics, 2008, 104[2], 023528