Waste package materials screening and selection
- comp.
The two primary waste package barriers (other than the waste form itself) are the corrosion-resistant/structural component and the emplacement hole backfill. While the waste forms proposed for the NWTS program are currently projected to be borosilicate glass and spent fuel, the number of candidate materials for the other barriers is potentially quite large and must therefore be reduced. This is being accomplished through materials screening test programs. The major NWTS programs for the development and testing of corrosion-resistant/structural components and emplacement hole backfills have been performed by Sandia National Laboratories (SNL) for salt media and by Pacific Northwest Laboratory (PNL) for basalt and salt. Materials studies in support of tuff or granite repositories using specific ground waters have not yet been initiated. However, it is expected that the range of ground-water compositions characteristic of salt, sea water, basalt, and de-ionized waters used in the current studies adequately bracket the ground-water compositions for tuff and granite at least for screening purposes. In both the SNL and PNL programs initial candidate materials were selected on the basis of literature surveys and consultations with investigators in the US and abroad.
- Research Organization:
- Battelle Memorial Inst., Columbus, OH (USA). Office of Nuclear Waste Isolation
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5169505
- Report Number(s):
- ONWI-312; ON: DE82020057; TRN: 82-018397
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ALUMINIUM
COMPARATIVE EVALUATIONS
BACKFILLING
MATERIALS TESTING
BASALT
BENTONITE
PERMEABILITY
CAST IRON
CORROSION RESISTANCE
CHARCOAL
COPPER
COPPER ALLOYS
GRAPHITE
IRON
LEAD
NICKEL BASE ALLOYS
PACKAGING
RADIOACTIVE WASTE DISPOSAL
SAND
STAINLESS STEELS
STEELS
TITANIUM BASE ALLOYS
ZEOLITES
ZIRCALOY 2
CALCIUM OXIDES
EXPERIMENTAL DATA
GEOLOGIC DEPOSITS
MAGNESIUM OXIDES
SALT DEPOSITS
UNDERGROUND DISPOSAL
ADSORBENTS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CALCIUM COMPOUNDS
CARBIDES
CARBON
CARBON COMPOUNDS
CHALCOGENIDES
CHROMIUM ADDITIONS
CHROMIUM ALLOYS
CLAYS
CORROSION RESISTANT ALLOYS
DATA
ELEMENTAL MINERALS
ELEMENTS
IGNEOUS ROCKS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON ADDITIONS
IRON ALLOYS
IRON BASE ALLOYS
IRON CARBIDES
IRON COMPOUNDS
MAGNESIUM COMPOUNDS
MANAGEMENT
MATERIALS
METALS
MINERALS
NICKEL ALLOYS
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
ROCKS
TESTING
TIN ALLOYS
TITANIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VOLCANIC ROCKS
WASTE DISPOSAL
WASTE MANAGEMENT
ZIRCALOY
ZIRCONIUM ALLOYS
ZIRCONIUM BASE ALLOYS
052002* - Nuclear Fuels- Waste Disposal & Storage
360105 - Metals & Alloys- Corrosion & Erosion
360603 - Materials- Properties