Theoretical Modelling of Ion Exchange Processes in Glass: Advances and Challenges
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|Title:||Theoretical Modelling of Ion Exchange Processes in Glass: Advances and Challenges
|Author:||Prieto Blanco, Xesús
Montero Orille, Carlos
|Affiliation:||Universidade de Santiago de Compostela. Departamento de Física Aplicada
|Subject:||Ion exchange in glass | Ion diffusion | Glass waveguides | Glass strengthening | Glass poling | Metal nanoparticles ||
|Date of Issue:||2021
|Citation:||Appl. Sci. 2021, 11(11), 5070; https://doi.org/10.3390/app11115070
|Abstract:||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|
|Rights:||© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/)
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Except where otherwise noted, this item's license is described as © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/)
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