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|Title: ||Zirconolite-rich titanate ceramics for immobilisation of actinides - waste form/HIP can interactions and chemical durability.|
|Authors: ||Zhang, Y|
|Issue Date: ||Dec-2009|
|Citation: ||Zhang, Y., Stewart, M. W. A., Li, H., Carter, M. L., Vance, E. R., & Moricca, S. (2009). Zirconolite-rich titanate ceramics for immobilisation of actinides - waste form/HIP can interactions and chemical durability. Journal of Nuclear Materials, 395(1-3), 69-74.|
|Abstract: ||Zirconolite-based titanate ceramics containing U plus Th or Pu have been prepared. The final consolidation to produce a dense monolithic waste form was carried out using hot isostatic pressing (HIPing) of the calcined materials within a stainless steel can. The ceramics were characterised and tested for their overall feasibility to immobilise impure Pu or separated actinide-rich radioactive wastes. As designed, tetravalent U and Pu are mainly incorporated in a durable zirconolite phase, together with Gd or Hf added as neutron absorbers. The interaction of the waste form with the HIP can was also examined. No changes in the U valences or the U/Pu-bearing phase distributions were observed at the waste form–HIP can interface. © 2009, Elsevier Ltd.|
|Appears in Collections:||Journal Articles|
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