Physical and chemical characterization of borosilicate glasses containing Hanford high-level wastes
Scouting studies are being performed to develop and evaluate silicate glass forms for immobilization of Hanford high-level wastes. Detailed knowledge of the physical and chemical properties of these glasses is required to assess their suitability for long-term storage or disposal. Some key properties to be considered in selecting a glass waste form include leach resistance, resistance to radiation, microstructure (includes devitrification behavior or crystallinity), homogeneity, viscosity, electrical resistivity, mechanical ruggedness, thermal expansion, thermal conductivity, density, softening point, annealing point, strain point, glass transformation temperature, and refractive index. Other properties that are important during processing of the glass include volatilization of glass and waste components, and corrosivity of the glass on melter components. Experimental procedures used to characterize silicate waste glass forms and typical properties of selected glass compositions containing simulated Hanford sludge and residual liquid wastes are presented. A discussion of the significance and use of each measured property is also presented.
- Research Organization:
- Atomics International Div., Richland, WA (USA). Rockwell Hanford Operations
- DOE Contract Number:
- AC06-77RL01030
- OSTI ID:
- 6766955
- Report Number(s):
- RHO-SA-189; CONF-801124-35
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
360605 -- Materials-- Radiation Effects
BOROSILICATE GLASS
CHEMICAL PROPERTIES
CORROSIVE EFFECTS
CRYSTAL STRUCTURE
DENSITY
GLASS
HIGH-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
MICROSTRUCTURE
OPTICAL PROPERTIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROCESSING
RADIATION EFFECTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REFRACTIVITY
SOLIDIFICATION
VISCOSITY
VOLATILITY
WASTE MANAGEMENT
WASTE PROCESSING
WASTES