The study of the interaction of hydrogen isotopes with the Pb-Li eutectic alloy is of interest for the design of the fusion reactor breeding blankets. Particularly, the solubility of the hydrogen isotopes in the Pb-Li eutectic alloy significantly affects the tritium inventory and permeation in the blankets. Furthermore, the electrical resistivity of hydrogenated Pb-Li is of concern for the assessment of MHD regimes. In analogy with other hydrogen/metal systems, a modification of the electric properties is expected by varying the hydrogen content. So far, the literature reports large discrepancies for the measurements in Pb-Li of both the hydrogen isotopes solubility (2-3 orders of magnitude) and the electrical resistivity (more than 1 order of magnitude). This work reports the results of hydrogen solubility in Pb-Li in the temperature and pressure ranges 250-450 °C and 20-150 kPa, respectively. Preliminary electrical resistivity measurements have been carried out at 360 °C in Ar and in hydrogen (250 kPa). © 2013 IEEE.

Hydrogen solubility and electrical resistivity measurements of hydrogenated Pb-Li

Sansovini, M.;Santucci, A.;Pozio, A.;Tosti, S.
2013

Abstract

The study of the interaction of hydrogen isotopes with the Pb-Li eutectic alloy is of interest for the design of the fusion reactor breeding blankets. Particularly, the solubility of the hydrogen isotopes in the Pb-Li eutectic alloy significantly affects the tritium inventory and permeation in the blankets. Furthermore, the electrical resistivity of hydrogenated Pb-Li is of concern for the assessment of MHD regimes. In analogy with other hydrogen/metal systems, a modification of the electric properties is expected by varying the hydrogen content. So far, the literature reports large discrepancies for the measurements in Pb-Li of both the hydrogen isotopes solubility (2-3 orders of magnitude) and the electrical resistivity (more than 1 order of magnitude). This work reports the results of hydrogen solubility in Pb-Li in the temperature and pressure ranges 250-450 °C and 20-150 kPa, respectively. Preliminary electrical resistivity measurements have been carried out at 360 °C in Ar and in hydrogen (250 kPa). © 2013 IEEE.
9781479901715
electrical resistivity;lithium-lead;solubility
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12079/3757
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