Sol-gel coatings on float glass

Abstract

The refractive coefficients and thickness of two-sided sol-gel coatings of different compositions deposited on float glass by the immersion method are measured. It is established that the refractive coefficient on the top surface of a sample, which contacts the protective atmosphere of the melt tank during glass working, is higher and the film thickness is smaller than those on the bottom surface. This is due to the different properties of the opposite surfaces of thermally polished glass, which is related to the different tin concentrations in the surface layers.

Effect of additional applied thermal/electric field on the float-glass surface

“…The float process involves floating a ribbon of molten glass on a bath of molten tin [1][2][3] . The weathering and deterioration of alkali silicate glasses by humidity is a common problem now, especially for freshly formed surfaces (eg, blown bottles, fiberglass insulation wool and float-glass) under the hot and humid conditions of summer climate and warehouse storage.…”