Abstract
The tritium release behavior of the Li4SiO4 pebbles and Li4SiO4 + 5 mol% TiO2 pebbles with small grain sizes was investigated. The tritium release results of Li4SiO4 pebbles with different grain sizes (0.3 μm and 1.5 μm) indicated that the grain size had little effect on the tritium release regardless of the difference in gas composition of purge gas. Moreover, the tritium release of small grained pebbles was dominated by the desorption process, since the addition of H2 to purge gas substantially affected the release behavior. The modified Li4SiO4 pebbles with addition of TiO2 exhibited enhanced water formation capacity due to the increased concentration of active point as the oxygen supplier. Obvious tritiated water release peaks around 690 °C could be observed from the Li4SiO4 + 5 mol% TiO2 pebbles under 0.1%H2+He purge gas. The modified Li4SiO4 pebbles also showed improved tritium release behavior, the tritium release peaks shifted to lower temperatures compared to Li4SiO4 pebbles.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
