| 发明名称 |
Pencil comprising a stack of oxide nuclear fuel pellets |
| 摘要 |
The rod contains substantially cylindrical oxide nuclear fuel pellets based on enriched uranium oxide. The H/D ratio of the height over the diameter of the pellets lies in the range 0.4 to 0.6. The initial diametral clearance between the pellets and the cladding does not exceed 200 μm. |
| 申请公布号 |
US9053830(B2) |
申请公布日期 |
2015.06.09 |
| 申请号 |
US200110433229 |
申请日期 |
2001.11.27 |
| 申请人 |
AREVA NP |
发明人 |
Delafoy Christine;Deydier Pascal |
| 分类号 |
G21C3/00;G21C21/02 |
主分类号 |
G21C3/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A sintered pellet of oxide nuclear fuel, the pellet being substantially cylindrical and based on enriched uranium oxide, wherein the pellet contains from 1450 to 1750 ppm of Cr2O3 which has not been reduced during sintering of the pellet and wherein a grain size of UO2 is equal to or greater than 40 μm, wherein the fuel does not contain plutonium dioxide. |
| 地址 |
Courbevoie FR |
