The effect of mixed modifiers on nuclear waste glass processing, leaching, and Raman spectra

摘要

Borosilicate glasses with different waste loadingswere prepared by ambient melting, quenching, and annealing. Somemelt compositions partially crystallize to durable phases of zirconand forsterite. The coexisting liquid quenches to glass and enduresthe leach tests. The waste loading dependent leach rate trends ofthese glasses are reminiscent of the mixed alkali effect. Ramanspectra suggest initial increase in durability with increases in thedepolymerization of silicate species.