OPTICAL-PROPERTIES AND CHEMICAL DURABILITY OF LEAD INDIUM ALUMINUM PHOSPHATE-GLASS

The optical properties and chemical durability of lead-indium-aluminum phosphate glass prepared by a wet-chemical process have been investig ated. Ultraviolet-visible and infrared spectra were recorded for the g lass. The refraction index of the glass was measured as a function of wavelength in the visible region of the spectrum. The long-term chemic al durability of the glass in acidic and basic aqueous solutions was e xamined at a high temperature. The results are compared with recent da ta for other phosphate glasses, and indicate that lead-indium-aluminum phosphate glass has a promising combination of good optical propertie s and chemical durability.