Author:
Buck E. C.,Ebbinghaus B.,Bakel A. J.,Bates J. K.
Abstract
ABSTRACTA titanate-based ceramic waste form, rich in phases structurally related to
zirconolite (CaZrTi2O7), is being developed as a
possible method for immobilizing excess plutonium from dismantled nuclear
weapons. As part of this program, Lawrence Livermore National Laboratory
(LLNL) produced several ceramics that were then characterized at Argonne
National Laboratory (ANL). The plutonium-loaded ceramic was found to contain
a Pu-Gd zirconolite phase but also contained plutonium titanates,
Gd-polymignyte, and a series of other phases. In addition, much of the Pu
was remained as PuO2-x. The Pu oxidation state in the zirconolite
was determined to be mainly Pu4+, although some Pu3+
was believed to be present.
Publisher
Springer Science and Business Media LLC
Cited by
9 articles.
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