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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/3138

Title: Zirconolite-rich titanate ceramics for immobilisation of actinides - waste form/HIP can interactions and chemical durability.
Authors: Zhang, Y
Stewart, MWA
Li, H
Carter, ML
Vance, ER
Moricca, S
Keywords: Zirconolite
Titanates
Actinides
Waste Forms
Ceramics
Hot Pressing
Issue Date: Dec-2009
Publisher: Elsevier
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.
URI: http://dx.doi.org/10.1016/j.jnucmat.2009.09.019
http://apo.ansto.gov.au/dspace/handle/10238/3138
ISSN: 0022-3115
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