Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7965068 | Journal of Nuclear Materials | 2015 | 5 Pages |
Abstract
In this study, highly densified Y2Ti2O7 pyrochlore waste forms were readily prepared within 5 min by self-propagating high-temperature synthesis plus quick pressing (SHS/QP). Fe2O3 was employed as the oxidant with Ti as the reductant. The as-prepared sample exhibits an analogous self-encapsulated morphology with Y2Ti2O7 core and Fe cladding. The synthesized pyrochlore-based waste form possesses high density of 5.35 g/cm3 and Vickers hardness of 11.5 ± 0.2 GPa, as well as excellent aqueous durability. The 28 days normalized leaching rates of Y, Ti and Fe are as low as 1.07 Ã 10â6, 6.63 Ã 10â5 and 1.42 Ã 10â5 g mâ2 dâ1.
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
Kuibao Zhang, Guanjun Wen, Haibin Zhang, Yuancheng Teng,