摘要: The specifications on fast breeder reactor (FBTR) fuel pellets have two apparently contradictory requirements, viz.; (1) formation of homogeneous solid between UO sub 2 and PuO sub 2 which can only be achieved by high temperature ... 展开 The specifications on fast breeder reactor (FBTR) fuel pellets have two apparently contradictory requirements, viz.; (1) formation of homogeneous solid between UO sub 2 and PuO sub 2 which can only be achieved by high temperature sintering and (2) density of sintered pellets in the range of 92 +- 1 per cent T.D. which is normally achieved by low temperature sintering. Deactivation of starting powders under CO sub 2 or addition of volatile pore formers to the powders are the two methods which have been developed for lowering the density of the pellets without reducing the sintering temperature. Two alternative fabrication routes utilizing these processes for manufacturing of FBTR pellets are described in this report. 5 figures, 1 table. (ERA citation 12:038834) 收起