Simulation of the Relaxation Processes of Diffusion in Glasses

To consider the relaxation nature of a mass transfer in glass under its interaction with chemical reagents (solutions and melts), the hyperbolic equation, namely, the diffusion wave model was used. The adequacy of the model was confirmed by the calculations of the processes in different glass–reagent systems. The deviation of the calculated values of the mass transfer characteristics from the experimental ones did not exceed the experimental error and, at the initial phase, is by several orders smaller than that in the case of using the Fick equation.