Glass waste forms for the Na-bearing high activity waste fractions

摘要

Candidate experimental glasses for the Na-bearing high activity waste fractions were synthesized by crucible melting a mixture of reagent chemicals representative of the Na-bearing waste, the pilot plant alumina calcine, and frit additives at 1,200 or 1,600 C for 2--5 hours followed by air cooling of the melt. These glasses were characterized for density, elastic properties, viscosity, electrical resistivity, chemical durability, structural parameters, and glass phase separation. The results are discussed in this report.