Synthesis, Characterization and Study of the Radiation Effects on Hollandite Ceramics Developed for Cesium Immobilizatio

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6\QWKHVLV&KDUDFWHUL]DWLRQDQG6WXG\RIWKH5DGLDWLRQ(IIHFWVRQ+ROODQGLWH&HUDPLFV 'HYHORSHGIRU&HVLXP,PPRELOL]DWLRQ Virginie Aubin1, Daniel Caurant1, Didier Gourier1, Noël Baffier1, Thierry Advocat2, Florence Bart2, Gilles Leturcq2, Jean M. Costantini3 1 LCAES (UMR CNRS 7574), ENSCP, 11 rue P.M. Curie, 75231 Paris, France 2 Commissariat à l’Energie Atomique, DEN/DIEC/SCDV, 30207 Bagnols-sur-Cèze, France 3 Commissariat à l’Energie Atomique, DEN/DMN/SRMA, 91191 Gif sur Yvette, France $%675$&7 Progress on separating the long-lived fission products has notably implied basic research on specific host matrices, especially for the immobilization of cesium. Barium hollandite (BaAl2Ti6O16) ceramics have received considerable interest because of their high cesium incorporation ability and chemical stability. This study deals with the preparation of hollandite in the BaxCsy(Al,Fe)2x+yTi8-2x-yO16 (x+y

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