Fabrication of aluminum nitride crucibles for molten salt and plutonium compatibility studies
Technical Report
·
OSTI ID:6073669
The overall objective of this research was to fabricate a calcium oxide sinter-aided aluminum nitride crucible and determine the compatibility of this crucible with molten chloride salts and plutonium metal in the DOR process. Calcium oxide sinter-aided aluminum nitride was preferred over yttrium oxide sinter-aided aluminum nitride because of (1) the presence of calcium chloride, calcium oxide, and calcium metal in the molten salts utilized in the DOR process, and (2) the higher volatility of the secondary phases formed compared with phases resulting from the addition of yttrium oxide during the aluminum nitride sintering process. The calcium oxide system may yield a higher purity crystal structure with fewer secondary phases present than in the yttrium oxide system. The secondary phases that are present in the grain boundaries may be unreactive with the calcium chloride salt due to the presence of calcium in the secondary phases.
- Research Organization:
- EG and G Rocky Flats, Inc., Golden, CO (United States). Rocky Flats Plant
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC34-90DP62349
- OSTI ID:
- 6073669
- Report Number(s):
- RFP-4528; ON: DE92004002
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM NITRIDES
ALUMINIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COMPATIBILITY
CRUCIBLES
CRYSTAL STRUCTURE
DIFFRACTION
ELECTRON MICROSCOPY
FABRICATION
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MICROSCOPY
MICROSTRUCTURE
MOLTEN SALTS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLUTONIUM COMPOUNDS
PLUTONIUM OXIDES
PNICTIDES
SALTS
SCATTERING
SINTERING
TRANSITION ELEMENT COMPOUNDS
TRANSURANIUM COMPOUNDS
X-RAY DIFFRACTION
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM NITRIDES
ALUMINIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COMPATIBILITY
CRUCIBLES
CRYSTAL STRUCTURE
DIFFRACTION
ELECTRON MICROSCOPY
FABRICATION
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MICROSCOPY
MICROSTRUCTURE
MOLTEN SALTS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLUTONIUM COMPOUNDS
PLUTONIUM OXIDES
PNICTIDES
SALTS
SCATTERING
SINTERING
TRANSITION ELEMENT COMPOUNDS
TRANSURANIUM COMPOUNDS
X-RAY DIFFRACTION
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES