Tritium release from neutron-irradiated LiO; Transport in porous sintered pellets

Tanifuji, Takaaki*; Yamaki, Daiju; Jitsukawa, Shiro

Fusion Engineering and Design, 81(1-7), p.595 - 600, 2006/02

https://doi.org/10.1016/j.fusengdes.2005.10.011

The tritium release behavior from LiO sintered pellets is observed by isothemal heating tests. (1) For 81%TD,The rate determining process is controlled by Kohlrauch strecthed exponential form. Tritium trapped in irradiation defects released with recovering the defects by isothermal heating. (2) For 88%TD, tritium release behavior is controlled by Avrami law (exponent n=0.5). The rate determining process is the connected micro-pore migration process.