RT Journal Article T1 Theoretical Modelling of Ion Exchange Processes in Glass: Advances and Challenges A1 Prieto Blanco, Xesús A1 Montero Orille, Carlos K1 Ion exchange in glass K1 Ion diffusion K1 Glass waveguides K1 Glass strengthening K1 Glass poling K1 Metal nanoparticles AB In the last few years, some advances have been made in the theoretical modelling of ion exchange processes in glass. On the one hand, the equations that describe the evolution of the cation concentration were rewritten in a more rigorous manner. This was made into two theoretical frameworks. In the first one, the self-diffusion coefficients were assumed to be constant, whereas, in the second one, a more realistic cation behaviour was considered by taking into account the so-called mixed ion effect. Along with these equations, the boundary conditions for the usual ion exchange processes from molten salts, silver and copper films and metallic cathodes were accordingly established. On the other hand, the modelling of some ion exchange processes that have attracted a great deal of attention in recent years, including glass poling, electro-diffusion of multivalent metals and the formation/dissolution of silver nanoparticles, has been addressed. In such processes, the usual approximations that are made in ion exchange modelling are not always valid. An overview of the progress made and the remaining challenges in the modelling of these unique processes is provided at the end of this review PB MDPI YR 2021 FD 2021 LK http://hdl.handle.net/10347/26511 UL http://hdl.handle.net/10347/26511 LA eng NO Appl. Sci. 2021, 11(11), 5070; https://doi.org/10.3390/app11115070 NO This research was funded by Xunta de Galicia, Consellería de Educación, Universidades e FP, Grant GRC Number ED431C2018/11, and Ministerio de Economía, Industria y Competitividad, Gobierno de España, Grant Number AYA2016-78773-C2-2-P, European Regional Development Fund DS Minerva RD 27 abr 2026