摘要 |
The process according to the invention is based on the simultaneous ion exchange of two ions having an almost identical mobility with the ions of a glass substrate, at least one of the aforementioned two ions being used in the form of an enamel. According to a first embodiment, the process comprising the steps that consist in: a) depositing, at the surface of a glass substrate that contains a first ion, an enamel composition containing a second ion chosen from Ag, Tl, Ba or Cu ions, or precursors thereof, in the form of a pattern or an array of patterns; b) bringing the substrate to a temperature sufficient to fire the enamel; c) immersing the substrate into a molten salt that comprises a third ion having a mobility almost equal to that of the second ion; d) applying an electric field through the immersed substrate so that the second ions originating from the enamel and the third ions originating from the molten salt simultaneously replace the first ions in the substrate; e) withdrawing the substrate from the molten salt; and f) removing the enamel.
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