Capillary motion of gas inclusions upon annealing of glass-coatings

The effect of iron oxides on the physicochemical properties of ground enamels, which regulate the capillary movement of gas bubbles, has been studied. The velocities of the capillary motion of bubbles in the enamel melt were calculated by two mechanisms: thermodynamic and film overflow of Marangoni. In the approximation of the prevailing role of the thermodynamic mechanism, the duration of the release of gas bubbles from the enamel layer under the action of capillary force is determined. Il. 6, bibliography: 3 titles.