Author/Authors :
Crum، نويسنده , , Jarrod and Maio، نويسنده , , Vince and McCloy، نويسنده , , John and Scott، نويسنده , , Clark and Riley، نويسنده , , Brian and Benefiel، نويسنده , , Brad and Vienna، نويسنده , , John M. Archibald، نويسنده , , Kip and Rodriguez، نويسنده , , Carmen and Rutledge، نويسنده , , Veronica and Zhu، نويسنده , , Zihua and Ryan، نويسنده , , Joe and Olszta، نويسنده , , Matthew، نويسنده ,
Abstract :
Glass ceramics are being developed to immobilize fission products, separated from used nuclear fuel by aqueous reprocessing, into a stable waste form suitable for disposal in a geological repository. This work documents the glass ceramic formulation at bench scale and for a scaled melter test performed in a pilot-scale (∼1/4 scale) cold crucible induction melter (CCIM). Melt viscosity, electrical conductivity, and crystallization behavior upon cooling were measured on a small set of compositions to select a formulation for melter testing. Property measurements also identified a temperature range for melter operation and cooling profiles necessary to crystallize the targeted phases in the waste form. Bench scale and melter run results successfully demonstrate the processability of the glass ceramic using the CCIM melter technology.
