Author:
Mika M.,Schweiger M. J.,Vienna J. D.,Hrma P.
Abstract
ABSTRACTThe liquidus temperature (TL) often limits the loading of
high-level waste in glass through the constraint that TL must be
at least 100°C below the temperature at which the glass viscosity is 5 Pa-s.
In this study, values of TL for spinel primary crystalline phase
were measured as a function of glass composition. The test glasses were
based on high-iron Hanford Site tank wastes. All studied glasses
precipitated spinel (Ni,Fe,Mn)(Cr,Fe)2O4 as the
primary crystalline phase. TL was increased by additions of
Cr2O3, NiO, Al2O3,
Fe2O3, MgO, and MnO; while Li2O,
Na2O, B2O3, and SiO2 had a
negative effect. Empirical mixture models were fitted to data.
Publisher
Springer Science and Business Media LLC
Reference9 articles.
1. 7. U.S. Department of Energy, TWRS Privatization Request for Proposals, NO. DE-RP06–96RL13308, Richland, Washington (1996).
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