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

Nuclear waste glasses must simultaneously meet a number of criteria related to their processability, product quality, and cost factors. The properties that must be controlled in glass formulation and waste vitrification plant operation tend to vary smoothly with composition allowing for glass property-composition models to be developed and used. Models have been fit to the key glass properties. The properties are transformed so that simple functions of composition (e.g., linear, polynomial, or component ratios) can be used as model forms. The model forms are fit to experimental data designed statistically to efficiently cover the composition space of interest. Examples of these models are found in literature. The glass property-composition models, their uncertainty definitions, property constraints, and optimality criteria are combined to formulate optimal glass compositions, control composition in vitrification plants, and to qualify waste glasses for disposal. An overview of current glass property-composition modeling techniques is summarized in this paper along with an example of how those models are applied to glass formulation and product qualification at the planned Hanford high-level waste vitrification plant.
Authors:
 [1] ;
  1. Pacific Northwest National Laboratory
Publication Date:
OSTI Identifier:
1209064
Grant/Contract Number:
AC05-76RL01830
Type:
Accepted Manuscript
Journal Name:
Procedia Materials Science
Additional Journal Information:
Journal Volume: 7; Journal Issue: C; Journal ID: ISSN 2211-8128
Publisher:
Elsevier
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES Glass; Nuclear Waste; Property; Borosilicate; Melt; Formulation; Model