Studies of two-phase lithium ceramics Li4SiO4-Li2TiO3 under conditions of neutron irradiation


Kulsartov T. Zaurbekova Z. Knitter R. Shaimerdenov A. Chikhray Y. Askerbekov S. Akhanov A. Kenzhina I. Kizane G. Kenzhin Y. Aitkulov M. Sairanbayev D. Gordienko Y. Ponkratov Y.
March 2022Elsevier Ltd

Nuclear Materials and Energy
2022#30

This work presents the preliminary experimental data on the study of gas release from two-phase lithium ceramics Li4SiO4-Li2TiO3 under neutron irradiation conditions. Experiments were carried out at the WWR-K research reactor (Almaty, Kazakhstan) for ∼4.3 days. The total neutron fluence during the irradiation was ∼1.8·1019n/cm2. In the course of irradiation, two experiments on ceramics heating during irradiation and two experiments with hydrogen isotopes (H2 and D2) supply into the experimental chamber with the sample were performed at a temperature of 680 °C and reactor power of 6 MW. During the entire irradiation, the gas composition in the continuously evacuated ampoule device with samples was recorded. The obtained dependences of the release of tritium-containing molecules and helium during the experiment were qualitatively analyzed.

Neutron irradiation , Tritium , Tritium release , Two-phase lithium ceramic

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al-Farabi Kazakh National University, Almaty, Kazakhstan
Institute of Applied Sciences and Information Technologies, Almaty, Kazakhstan
Institute of Atomic Energy, Branch of NNC RK, Kurchatov, Kazakhstan
Karlsruhe Institute for Technology, Karlsruhe, Germany
Institute of Nuclear Physics, Almaty, Kazakhstan
Kazakh-British Technical University, Almaty, Kazakhstan
University of Latvia, Riga, Latvia

al-Farabi Kazakh National University
Institute of Applied Sciences and Information Technologies
Institute of Atomic Energy
Karlsruhe Institute for Technology
Institute of Nuclear Physics
Kazakh-British Technical University
University of Latvia

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