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Fabrication and Characterization of Ce-Doped Gd2Zr2O7 Ceramics as Simulated Waste Forms for Treating Pu

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Abstract:

In order to investigate the disposal of plutonium by Gd2Zr2O7, Ce-doped Gd2Zr2O7 were fabricated by high temperature solid state reaction at 1500 °C under atmospheric pressure for 72 h. XRD and SEM studies were exploited to characterize the crystal structure and microstructure of the synthetic samples. The results revealed that Gd2Zr2O7 shows a single pyrochlore structure while Gd2Ce2O7 exhibit a defective fluorite structure. The microstructure of the samples was relatively dense, and the grain size was in the range of 3 - 6 μm.

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Periodical:

Applied Mechanics and Materials (Volume 737)

Pages:

639-641

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.737.639

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Online since:

March 2015

Authors:

Yan Kai Yang, Yi Xie, Xi Rui Lu*

Keywords:

Ce-Doping, Gd2Zr2O7, Phase, Solid State Reaction

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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