Waste Glass Design Based on Property Composition Functions

Liquidus Temperature Data for DWPF Glass

“…The R2 values listed in Table 5.2 suggest that Equation (2) provides reasonable approximations to the relationships between glass composition and T,'for each of the three databases. The s values listed in Table 5.2 range from 25.0"C to 32.3"C, being larger than the imprecision standard deviation of 4°C.…”

“…Standards were tested in each furnace, and the results were used to adjust the 10 repeat measurements. 25 See Footnote 15. Drawing conclusions from the data in Table 5.1 is complicated by the multiple sources of variation and the unbalanced nature of the data.…”

Compositional Models of Glass/Melt Properties and their Use for Glass Formulation

“…The process of formulating a glass based on glass propertycomposition models is one of constrained numerical optimization. For example, to maximize the waste loading in a glass (i.e., minimize the amount of glass per unit waste vitrified), the fractions of waste and each chemical additive are systematically varied until the waste fraction is the highest while simultaneously meeting all property constraints (Hrma and Robertus 1993). This process is simple in concept, but, quickly becomes complicated in practice when process and prediction uncertainties are accounted for and multi-attribute optimization is needed to define the optimal glass.…”

Database and Interim Glass Property Models for Hanford HLW Glasses

“…Solution of the constrained optimization problem of finding x 0 ∈ V has been outlined several times in the past; see, for example, Hrma and Robertus (1993) and Hrma (1994). This approach to developing HLW glass formulations has been widely applied at Hanford and Idaho (Vienna et al 2000).…”