Impact of HLW Glass Crystallinity on the PCT Response

[摘要] Optimizing glass formulation for vitrifying waste is based on computing a glass composition that would meet processability and acceptability constraints imposed on glass properties and composition while maximizing system efficiency. The process currently employed allows for estimation of all limiting glass properties except for the normalized element releases (ri, where i = B, Na, or Li) by the product consistency test (PCT) from glasses subjected to canister centerline cooling (CCC). This report documents a suggested approach to include this key glass property in numerical glass optimization. It shows that acceptable predictions of rB and rNa from CCC glasses can be obtained provided that sufficiently accurate compositions and concentrations of the crystalline phases in CCC glass are known.

[发布日期] 2002-08-08 [发布机构] Pacific Northwest National Laboratory (U.S.)

[关键词] Rutherford Backscattering Spectroscopy;59 Basic Biological Sciences;Rna;Wastes;Efficiency