First principles process-product models for vitrification of nuclear waste: Relationship of glass composition to glass viscosity, resistivity, liquidus temperature, and durability
Borosilicate glasses will be used in the USA and in Europe to immobilize radioactive high level liquid wastes (HLLW) for ultimate geologic disposal. Process and product quality models based on glass composition simplify the fabrication of the borosilicate glass while ensuring glass processability and quality. The process model for glass viscosity is based on a relationship between the glass composition and its structural polymerization. The relationship between glass viscosity and electrical resistivity is also shown to relate to glass polymerization. The process model for glass liquidus temperature calculates the solubility of the liquidus phases based on the free energies of formation of the precipitating species. The durability product quality model is based on the calculation of the thermodynamic hydration free energy from the glass composition.
- Research Organization:
- Westinghouse Savannah River Co., Aiken, SC (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- OSTI ID:
- 10130159
- Report Number(s):
- WSRC-MS-91-011; CONF-910430-24; ON: DE92009413
- Resource Relation:
- Conference: 93. annual meeting and exposition of the American Ceramic Society (ACerS),Cincinnati, OH (United States),28 Apr - 2 May 1991; Other Information: PBD: [1991]
- Country of Publication:
- United States
- Language:
- English
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The relationship between glass viscosity and composition: A first principles model for vitrification of nuclear waste
The relationship between glass viscosity and composition: A first principles model for vitrification of nuclear waste
Related Subjects
36 MATERIALS SCIENCE
BOROSILICATE GLASS
VISCOSITY
ELECTRIC CONDUCTIVITY
CHEMICAL COMPOSITION
HIGH-LEVEL RADIOACTIVE WASTES
VITRIFICATION
SOLUBILITY
FREE ENTHALPY
ALUMINIUM OXIDES
052001
360606
WASTE PROCESSING
PHYSICAL PROPERTIES