Recrystallisation of amorphous natural brannerite through annealing: The effect of radiation damage on the chemical durability of brannerite
An amorphous natural brannerite sample was chosen to study the annealing of the radiation damage through thermal recrystallisation, and subsequently to evaluate the effect of radiation damage on its aqueous durability. Microstructural characterisation of the natural brannerite revealed minor alterat...
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| Veröffentlicht in: | Journal of nuclear materials 2006-05, Vol.350 (3), p.293-300 |
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| container_title | Journal of nuclear materials |
| container_volume | 350 |
| creator | Zhang, Y. Lumpkin, G.R. Li, H. Blackford, M.G. Colella, M. Carter, M.L. Vance, E.R. |
| description | An amorphous natural brannerite sample was chosen to study the annealing of the radiation damage through thermal recrystallisation, and subsequently to evaluate the effect of radiation damage on its aqueous durability. Microstructural characterisation of the natural brannerite revealed minor alteration along the rim of the crystal and within cracks. The formation of UO
2 particles and soluble Pb–Ca-rich aluminosilicate glass is responsible for the higher U and Pb releases from the recrystallised brannerite. In general, natural brannerite has been shown to be resistant to dissolution over geological time, therefore minor brannerite inclusions in ceramic formulations for immobilisation of actinide-rich radioactive wastes should not have a detrimental effect on the long-term chemical durability of the wasteforms. |
| doi_str_mv | 10.1016/j.jnucmat.2006.01.012 |
| format | Article |
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2 particles and soluble Pb–Ca-rich aluminosilicate glass is responsible for the higher U and Pb releases from the recrystallised brannerite. 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Microstructural characterisation of the natural brannerite revealed minor alteration along the rim of the crystal and within cracks. The formation of UO
2 particles and soluble Pb–Ca-rich aluminosilicate glass is responsible for the higher U and Pb releases from the recrystallised brannerite. In general, natural brannerite has been shown to be resistant to dissolution over geological time, therefore minor brannerite inclusions in ceramic formulations for immobilisation of actinide-rich radioactive wastes should not have a detrimental effect on the long-term chemical durability of the wasteforms.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jnucmat.2006.01.012</doi><tpages>8</tpages></addata></record> |
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| ispartof | Journal of nuclear materials, 2006-05, Vol.350 (3), p.293-300 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Energy Exact sciences and technology Fuels Nuclear fuels Preparation and processing of nuclear fuels |
| title | Recrystallisation of amorphous natural brannerite through annealing: The effect of radiation damage on the chemical durability of brannerite |
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