Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 378, Issue 2, Pages 167-171Publisher
ELSEVIER
DOI: 10.1016/j.jnucmat.2008.05.011
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Funding
- European Commission
- European Commission-JRC-ITU Actinide User Laboratory program [209657/2007 AUL 101]
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Thermal behaviour and lattice parameters of monazites MPO4 (M3+ = Ce3+, Nd3+ and Pu3+) and cheralite CaTh(PO4)(2) were studied using high-temperature X-ray diffraction. Heat treatment under inert atmosphere caused the decomposition Of PuPO4 and CaTh(PO4)(2) into the corresponding oxides above 1473 K. The influence of the cation type within the crystallographic structure on the thermal expansion coefficient and the possible cation substitutions are discussed in the frame of nuclear waste management. (C) 2008 Elsevier B.V. All rights reserved.
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