SYNROC C: preparation and radwaste distribution
Results of the synthesis of SYNROC C from both high surface area (16m/sup 2//g) and low surface area (4m/sup 2//g) powders at low and high oxygen fugacities indicate variations in radionuclide distribution. These results are most striking for the partitioning of uranium between perovskite and zirconolite. In highly active powders, the formation of a pyrochlore precursor ensures that equilibrium partitioning is approached. In less active powders, no low temperature pyrochlore is formed. As a result, the uranium partitioning is a function of nucleation processes. At high oxygen fugacities, uranium is rejected from perovskite and an additional uranium rich phase is formed precluding the synthesis of SYNROC C in air.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5986490
- Report Number(s):
- UCRL-86880; CONF-811013-10; ON: DE82003853; TRN: 82-000218
- Resource Relation:
- Conference: Electrochemical Society conference, Denver, CO, USA, 11 Oct 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
HOLLANDITE
PEROVSKITE
RADIOACTIVE WASTE PROCESSING
SYNROC PROCESS
SYNTHETIC ROCKS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
URANIUM
PARTITION
ZIRCONOLITE
CERAMICS
ELECTRON MICROPROBE ANALYSIS
EXPERIMENTAL DATA
SCANNING ELECTRON MICROSCOPY
SIMULATION
SOLIDIFICATION
ACTINIDES
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
DATA
ELECTRON MICROSCOPY
ELEMENTS
INFORMATION
MANAGEMENT
MATERIALS
METALS
MICROANALYSIS
MICROSCOPY
MINERALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHASE TRANSFORMATIONS
PROCESSING
ROCKS
SYNTHESIS
SYNTHETIC MATERIALS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
052001* - Nuclear Fuels- Waste Processing
360601 - Other Materials- Preparation & Manufacture