Sol-Gel Processing of Silica Nuclear Waste Glasses
作者： Andrzej Deptuła , Magdalena Miłkowska , Wiesława Łada , Tadeusz Olczak , Danuta Wawszczak
关键词: Thermogravimetric analysis 、 Leaching (metallurgy) 、 Thermal treatment 、 Ascorbic acid 、 Nuclear chemistry 、 Catalysis 、 Actinide 、 Sol-gel 、 Infrared spectroscopy 、 Materials science
摘要: A complex Sol-Gel process has been used for synthesis of silica glasses designed to contain high-level nuclear wastes. Cs, Sr, Co, and Nd (generically denoted Me) were used, the last as surrogate actinides. Gels in form powders sintered compacts prepared by hydrolysis polycondensation tetraethoxide/Me nitrate solutions, which contained ascorbic acid a catalyst. Thermal treatment studies conducted on resulting gels. Transformation final products was studied thermogravimetric analysis, infrared spectroscopy, X-ray diffraction. Preliminary testing Me leaching also completed quiescent water. Only single dense resistant
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