Preparation of Ultra Dispersive Glasses for Designing Novel Coatings

In order to attain glasses with ultra dispersions properties, different heavymetal oxides were used. the desired glasses were obtained from the additionof high amounts of pbo and bi2o3 to b2o3 based glasses. refractive indexmeasurements were carried out accurately at different wavelengths by 'theminimum angle of deviation in prisms' method employing a spectrometer. resultsindicated that, as the amount of bi2o3 increased in the glass system, themeasured dispersions deviated from the commercial glass trend to the higherlevels, 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 havebeen tried elsewhere, it may require more studies to be done, till better andhigher optical quality glasses are conquered. these glasses can be employed indesigning and constructing novel coatings or glazes, in which the incident whitelight entering, the coating layer, refracts out broadly in different colors.therefore, these glazes will appear in different colors, when are observed atdifferent angles. prog. color colorants coat. 2(2009), 7-21. © institute for colorscience and technology.