Abstract
We have obtained the Fourier transform IR reflectance spectra of quartz ceramic in different stages of its heat treatment: after drying at 100°C, calcining at 1180°C, and flame treatment of the surface. The spectroscopic data suggest that in the original material, there are a large number of non-bridging Si–O bonds. This is a favorable factor when doping the ceramic with Eu, Ce, Sm oxides, with the goal of converting the UV emission of laser pump lamps to luminescent emission. Non-bridging bonds do not appear in the final product, but we observe the presence of structural defects potentially reducing the UV resistance of the ceramic.
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