Preparing UO2 kernels by gelcasting

NUCLEAR ENGINEER

Preparing UO₂ kernels by gelcasting

GUO Wenli，

LIANG Tongxiang，

ZHAO Xingyu，

HAO Shaochang，

LI Chengliang

Nuclear Science and Techniques

Vol.20, No.2

pp.124-128

Published in print 20 Apr 2009

DOI：10.13538/j.1001-8042/nst.20.124-128

28000

A process named gel-casting has been developed for the production of dense UO₂ kernels for the high-temperature gas-cooled reactor. Compared with the sol-gel process, the green microspheres can be got by dispersing the U₃O₈ slurry in gelcasting process, which means that gelcasting is a more facilitative process with less waste in fabricating UO₂ kernels. The UO₂ kernels with the size of 500 µm, O/U≤2.01, density of 10.70 g·cm^-3 were obtained by gel-casting process followed by heat treatment.

HTRUO2 kernelGel-casting

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