Conference Proceedings Paper
INVESTIGATION OF THE THERMAL STABILITY OF NDXSCYZR1-X-YO2-Δ INERT MATRIX FUEL MATERIALS
39th Annual CNS-CNA Student Conference - 2015 June 01
J. Hayes (University of Saskatchewan)
M. Saoudi (Canadian Nuclear Laboratories)
A. Grosvenor (University of Saskatchewan)
The structure and thermal stability of a series of NdxScyZr1-x-yO2-δ inert matrix fuel materials have been studied. The materials were analyzed using powder X-ray diffraction and X-ray absorption spectroscopy. This approach allows for an analysis of both the long-range and local structures in these materials. The results showed that the ternary NdxZr1-xO2-δ and ScyZr1-yO2-δ materials were not stable when annealed at 1400 °C, and that the quaternary NdxScyZr1-x-yO2-δ materials were stable when annealed if y ≥ 0.10. This study shows that these materials may be sensitive to changes in composition, and this should be accounted for when considering the suitability of the NdxScyZr1-x-yO2-δ materials for inert matrix fuel applications.
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