Glass-ceramic forms for immobilizing plutonium using cerium as surrogate

摘要

New glass-ceramic forms have been developed that may be suitable for immobilizing plutonium, based on tests using cerium as a surrogate for plutonium. The glass-ceramic waste forms were formed with cerium oxide loadings equivalent to 15 wt percent of plutonium oxide and using surrogate compositions of Idaho Chemical Processing Plant (ICPP) high-level waste (HLW) calcines either by melting at 1450 deg C and atmospheric pressure or by sintering at 1050 deg C and MPa in a hot isostatic press (HIP).