DIELECTRIC BEHAVIOR IN THE FLOAT GLASS

The penetration of tin in afloat glass results in chemical composition and structural variations in the direction perpendicular to the tin s urface layers but does not vary ill the direction parallel to the tin surface layers. This, therefore leads to a difference between the diel ectric behaviour in each direction. It is obvious that the difference should be due to the tilt surface layers Therefore, the dielectric ic behaviour can be used to obtain information about the tin surface laye rs. Experiment and calculation shows that the dielectric constant in f loat glass is different in the both directions, as mentioned above, an d information oil the tin surface layers is included in the curve of t he dielectric constant in the direction parallel to the tin surface la yers as a function of the inverse of the electrode distance. rt is als o shown that dielectric constant in the direction perpendicular to the tin surface layers increases rapidly towards the surface.