Final Report. LAW Glass Formulation to Support AP-101 Actual Waste Testing, VSL-03R3470-2, Rev. 0

Muller, Isabelle S.; Pegg, Ian L.; Rielley, Elizabeth; Carranza, Isidro; Hight, Kenneth; Lai, Shan-Tao T.; Mooers, Cavin; Bazemore, Gina; Cecil, Richard; Kruger, Albert A.

doi:10.2172/1186013

Cited by 2 publications

(5 citation statements)

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“…A total of 121 T g values of simulated HLW glasses determined by dilatometry 18 constitute dataset D2. Finally, 94 T g values of simulated LAW glasses determined by differential thermal analysis (DTA) were collected from several reports by Vitreous State Laboratory, the Catholic University of America 29–41 to create dataset D3. The range of T g data and mass fractions of major components is given in Table 2.…”

Section: Methodsmentioning

confidence: 99%

Glass transition temperature of low‐activity waste nuclear glasses

George

Ferkl

Marcial

et al. 2023

Int J of Appl Glass Sci

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The glass transition temperature (𝑇 g ) is a parameter used in many glass melt viscosity models as it denotes a temperature around which liquid-glass transition occurs. In this work, 𝑇 g values were measured for a series of low-activity waste (LAW) glasses using differential scanning calorimetry. These data were combined with 𝑇 g data of other waste glasses available from literature. The combined dataset, consisting of 137 data points, was used for the development of several models to estimate 𝑇 g from glass composition. When testing the number of influential components and different supervised learning methods, we demonstrated that using more than 10 components or using non-linear methods brought marginal improvement to the model accuracy. The best model predicts 𝑇 g of both LAW and high-level waste glasses with reasonable accuracy.

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Section: Methodsmentioning

confidence: 99%

Glass transition temperature of low‐activity waste nuclear glasses

George

Ferkl

Marcial

et al. 2023

Int J of Appl Glass Sci

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“…Target compositions of the glasses that were studied are given in Tables 3.3 Table 4.11. The initial glass formulation development work was based on the results of earlier work [2,28], keeping the total alkali (Na 2 O+K 2 O) content at 22 wt%, similar to that in LAWA88. Additional glasses were prepared and characterized at lower waste loadings.…”

Section: Glass Formulations For Tank Ap-101 Lawmentioning

confidence: 99%

“…Additional glasses were prepared and characterized at lower waste loadings. An earlier set of glass formulations, previously reported [28] as part of the glass formulation work in support of an actual waste sample vitrification at PNWD led to the selection of glass LAWA126 at 18.46 wt% Na 2 O and 3.88 wt% K 2 O as a target composition for LAW Sub-Envelope A2. K-3 refractory corrosion was a major factor in the decision not to increase the total alkali content of the target glass composition.…”

Section: Glass Formulations For Tank Ap-101 Lawmentioning

confidence: 99%

“…LAWB83 has a reasonably high Li 2 O concentration of 4.31 wt% that is required to obtain the necessary sulfate solubility while not being so high as to cause excessive cracking of K-3 refractory. Based on these results, this formulation was successfully tested in the DM100 [30 and Pilot Melter [31] and was recommended for vitrification of the actual waste sample at PNWD [32].…”

Section: 4mentioning

confidence: 99%

“…LAWB96 is the glass composition currently selected for processing of LAW AZ-102 waste. In addition, another formulation LAWB88 was developed for vitrification and feed rheology testing of an actual sample of LAW AZ-102 at SRTC and is also reported separately [34].…”

Section: Glass Formulations For Law Sub-envelope B2mentioning

confidence: 99%

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