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The fabrication of homogeneous (Am, Y, Zr)O(2-x) pellets and heterogeneous pellets, containing (Am, Y, Zr)O(2-x) spheres dispersed in an inert matrix, by dust-free processes has been investigated. Due to the high activity of americium, the preparatory fabrication tests and process development are being carried out using cerium analogue element. The sol gel route is used to produce highly porous Y(0.15)Zr(0.85)O(2-x) spheres, which are then infiltrated with a cerium nitrate solution to give (Ce, Y, Zr)O(2-x). The goal (28 wt% Ce) can be achieved. Homogeneous targets with densities up to 94% TD have been obtained.

Additional information

Authors: BOUCHARAT N ET AL, JRC, Institute for Transuranium Elements, Karlsruhe (DE)
Bibliographic Reference: An oral report given at: E-MRS 2000 Symposium Materials Science with Ion Beams, Strasbourg (FR), 29 May-2 June 2000. Published in: Proceedings of Progress of Nuclear Energy, Vol.38, No.3-4 (2001), pp.255-258
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