Preparation of Ultra Dispersive Glasses for Designing Novel Coatings

I n order to attain glasses with ultra ‎dispersions properties, different ‎heavy metal oxides were used. The ‎desired glasses were obtained from ‎the addition of high amounts of ‎PbO and Bi2O3 to B2O3 based ‎glasses. Refractive index ‎measurements were carried out ‎accurately at different wavelengths ‎by ʹthe minimum angle of deviation ‎in prismsʹ method employing a ‎spectrometer. Results indicated ‎that, as the amount of Bi2O3 ‎increased in the glass system, the ‎measured dispersions deviated ‎from the commercial glass trend to ‎the higher levels, due to the ‎presence of higher number of non-‎bridging oxygen bonds. Since the ‎research is genuine, and along ‎with it, many families of glasses ‎have been tried elsewhere, it may ‎require more studies to be done, ‎till better and higher optical ‎quality glasses are conquered. ‎These glasses can be employed in ‎designing and constructing novel ‎coatings or glazes, in which the ‎incident white light entering, the ‎coating layer, refracts out broadly ‎in different colors. Therefore, these ‎glazes will appear in different ‎colors, when are observed at ‎different angles. ‎