Chemical Interaction Between Two Glasses At Melting Temperature

Mixing two slightly different glasses in order to make an homogeneous melt is an everyday challenge met by all the container glass producers and in a smaller extent by every glassmaker using cullet. The homogenising of molten glass is carried out in the furnace by two physico-chemical processes, diffusion and convection. The aim of this paper is to clarify the possible influence of diffusion and consequently the relative importance of both mechanisms in the homogenising process.