The surface properties of the glass modified by the new glass frosting paste. The surface layer morphology

A new paste for glass surface matting is proposed, which acts on the basis of the physicochemical process of surface ion exchange and does not contain hydrofluoric acid and its derivatives. The frosting process takes place at a temperature of 300 ° C and differs significantly from the known frosting processes: chemical etching and sandblasting of glass. The studied morphology of the surface layer of frosted glass is characterized by a system of microblocks (linear dimensions 50 - 150 ?m) and microcracks (width 100 - 200 nm). Microblocks have smooth borders and a smooth front surface. The morphology of the glass surface after matting and subsequent metal deposition by chemical reduction is also presented. Il. 5, bibliography: 4 titles.