Rutherford back scattering surface analysis of nuclear waste glasses after one year burial in STRIPA

Journal Article · Sun Jan 01 00:00:00 EST 1984 · Nucl. Chem. Waste Manage.; (United States)

DOI:https://doi.org/10.1016/0191-815X(84)90009-3· OSTI ID:6011424

Hench, L L; Buonaquisti, A D; Spilman, D B

Two simulated nuclear waste glasses, ABS-41 and ABS-39, with glass/glass, glass/bentonite, and glass/Pb burial interface configurations are examined by Rutherford Back Scattering (RBS) after a 1 year burial in deep granite boreholes (STRIPA mines, Sweden) at constant temperatures of 10/sup 0/C and 90/sup 0/C. RBS data analyses confirm the formation of a thin, silica-rich, reaction layer at the glass surface resulting from Na and B depletion due to ion-exchange between the glass and the surrounding media. Multiple valence cations concentrate within the silica-rich layer, with the exception of U, which is depleted from the surface region. Increases in burial temperature accelerate the extent of glass surface reactions as does wet, compacted bentonite at the interface. Pb interfaces precipitate Pb salts and (x)PbOX(y)SiO/sub 2/ reaction products at the glass surface.

• Research Organization: Ceramics Division, Department of Materials Science and Engineering, University of Florida, Gainesville, Florida
• OSTI ID: 6011424
• Journal Information: Nucl. Chem. Waste Manage.; (United States), Vol. 5:1
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
36 MATERIALS SCIENCE
BOROSILICATE GLASS
RUTHERFORD SCATTERING
WASTE-ROCK INTERACTIONS
GRANITES
BORON
CHEMICAL RADIATION EFFECTS
INTERFACES
LEAD
RADIOACTIVE WASTE DISPOSAL
SIMULATION
SODIUM
UNDERGROUND DISPOSAL
URANIUM
ACTINIDES
ALKALI METALS
CHEMISTRY
ELASTIC SCATTERING
ELEMENTS
GLASS
IGNEOUS ROCKS
MANAGEMENT
METALS
PLUTONIC ROCKS
RADIATION CHEMISTRY
RADIATION EFFECTS
ROCKS
SCATTERING
SEMIMETALS
WASTE DISPOSAL
WASTE MANAGEMENT
052002* - Nuclear Fuels- Waste Disposal & Storage
053000 - Nuclear Fuels- Environmental Aspects
360604 - Materials- Corrosion
Erosion
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