Crystalline Phase Separation in Phosphate Containing Waste Glasses: Relevance to INEEL HAW

[摘要] As part of the Tanks Focus Area's (TFA) effort to increase waste loading for high-level waste vitrification at various facilities in the Department of Energy (DOE) complex, the occurrence of phase separation in waste glasses spanning the Savannah River Site (SRS) and Idaho National Engineering and Environmental Laboratory (INEEL) composition ranges have been studied. The type of phase separation that occurs in the phosphate rich borosilicate waste glasses, such as those investigated for INEEL, crystallizes upon cooling. This type of phase separation mechanism is less well studied than amorphous phase separation in phosphate poor borosilicate waste glasses. Therefore, the type of phase separation, extent, and impact of phase separation on glass durability for a series of INEEL-type glasses were examined and the data statistically analyzed in this study.

[发布日期] 2000-09-21 [发布机构] Savannah River Site (S.C.)

[关键词] 12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities;Ineel;Wastes;Glass;Savannah River Plant