| Abstract Scope |
Iron phosphate (IP) glasses can have remarkably good chemical durability and have greater solubility limits for a variety of waste components that are less soluble in borosilicate glasses, making the IP glasses attractive candidates for waste immobilization applications*. In this talk, we will review the initial development of these glasses for waste applications by Prof. Delbert Day and his students, then discuss the relationships between glass composition, the molecular-level structures of the glasses, and glass properties, with an emphasis on dissolution rates in aqueous environments. We will review the performance of partially crystallized waste forms containing up to 40 wt% Collins-CLT waste simulant, including the importance of the composition and structure of the residual phosphate glass, and other applications for the IP glasses.
*RK Brow, et al., Int. J. Appl. Glass Sci., 2020;11:4-14. |