| Abstract Scope |
Vitrification is an internationally significant process for the disposition of nuclear waste. Salt formation is of concern for several international vitrification projects due to the deleterious effects of salt on melter operations and waste form durability. This talk will discuss a study exploring aluminoborosilicate glass containing SO42- and progressive additions of halide. Volatile anions, such as F-, Cl-, and SO42-, are the primary concerns for salt formation during vitrification, and have additional implications for geologic melts, electrofining, biological glasses, and optical glasses. The effect of Cl- and F- on single melt SO42- retention and partitioning after saturation will be compared. The differences between F- and Cl- incorporation on structure and thermal properties will additionally be reviewed. Further, results from in-situ process monitoring of salt formation with radiometry and interferometry at millimeter wavelengths will be presented. Overall implications for acceptable compositions for nuclear waste vitrification and salt detection technologies will be provided. |