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- Title
Control of Nepheline Crystallization in Nuclear Waste Glass.
- Authors
Fox, Kevin M.; Edwards, Thomas B.; Peeler, David K.
- Abstract
Glass frits with high B2O3 concentrations, when combined with high-alumina concentration nuclear waste, will form glasses with durabilities that are acceptable for disposal (normalized boron release of <1.7 g/L) and predictable using a free energy of hydration model. Glasses with nepheline discriminator values closest to 0.62 showed significant differences in durability between the quenched and heat-treated versions. Nepheline crystallized in the glass with the lowest nepheline discriminator value. The high-B2O3 frit was successful in producing glasses without crystallization at waste loadings of up to 45 wt%. The melt rate of this frit was also considerably improved (13.1 g/min).
- Subjects
RADIOACTIVE wastes; GLASS waste; NEPHELITE; CRYSTALLIZATION; HYDRATION
- Publication
International Journal of Applied Ceramic Technology, 2008, Vol 5, Issue 6, p666
- ISSN
1546-542X
- Publication type
Article
- DOI
10.1111/j.1744-7402.2008.02250.x