CHARACTERIZATION OF DOPED GLASSES MANUFACTURED BY SINTERING OF NANOPARTICLES

摘要

Gold ruby glass is conventionally manufactured by melting technology. Disadvantageous is the difficulty to control size and distribution of the nanosized gold particles. In order to diminish these disadvantages, the samples of this study are manufactured by sintering of silica green bodies. Here, a homogeneous and sharp pore size distribution can be realized, because the pore size is a function of the particle size of the powder used. These green bodies are impregnated with gold salt solutions. Since the forming gold particles are incorporated within the pores, their size and distribution should be governed by the pore size of the green body. In this paper, different colored samples are investigated by means of optical spectroscopy. UV-VIS transmission spectra, FT-IR and Raman spectra of sintered gold ruby glass are shown and compared to commercially available glasses. Differences occur mainly due to the different doping concentrations and the different matrix glass compositions.