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|Title:||Characterization and leaching behavior of plutonium-bearing Synroc-C|
Scanning electron microscopy
|Publisher:||Cambridge University Press/Springer Nature|
|Citation:||Smith, K. L., Lumpkin, G. R., Blackford, M. G., Hambley, M., Day, R. A., Hart, K. P., & Jostsons, A. (1996). Characterization and leaching behavior of plutonium-bearing Synroc-C. MRS Online Proceedings Library (OPL), 465, (pp. 1267-1272).doi:10.1557/PROC-465-1267|
|Abstract:||Synroc-C containing 10wt% simulated PW-4b-D HLW including 0.62 wt% 239Pu was subjected to MCC-1 type leach tests at 70°C in deionised water, silicate and carbonate leachates for 53 d and deionised water for 2472 d. The normalised total (i.e. unfiltered leachate + vessel wall) Pu leach rates in deionised water, silicate and carbonate leachates for periods up to 53 d were found to be of the order of 10-5, 10-4 and 10-4 g m-2 d-1 respectively. After 2472 d, the differential, normalised, Pu leach rate in deionised water dropped to ∼5 × 10-6 (total) and ∼5 × 10-8 (solution - after filtration through a 1000NMW filter) g m-2 d-1. SEM and AEM were used to characterise our starting material and investigate the secondary phases on the surfaces of leached Synroc-C discs. Calculated and measured normalised Pu leach rates are compared and the partitioning of Pu between zirconolite and perovskite is discussed. © Materials Research Society 1997|
|Description:||Print copy is held in ANSTO Library at DDC 621.4838/31|
|Appears in Collections:||Conference Publications|
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