| 摘要 |
Method of encasing radioactive material from nuclear reactors, for example, residual products from reprocessing plants such as casing tube residue or spent fuel during direct dumping. The fuel rod residue or spent fuel and a metal powder are filled into a metal container 1 which is closed shut. This is placed in an outer metal container 3. Between this and the first mentioned container 1 are arranged two layers 4, 5, 9 and 6, 7, 8 of ceramic powder which is sintered into a solid body at different temperatures. The outer layer 4, 5, 9 has a lower sintering temperature than the inner one. The outer container 3 is closed and heated along with the contents and exposed to an isostatic pressure at temperature high enough for the outer layer 4, 5, 9 of ceramic powder and the contents of the inner container 1 to be sintered into solid bodies. <IMAGE> |
