[2G15-17] Vitrification 2

[2G17] Basic research programs of vitrification technology for waste volume reduction

(58) Construction of thermodynamic database of Ru-Rh-Pd-SiO₂-B₂O₃-Na₂O-Li₂O system

*Ippei AMAMOTO¹, Koichi OHYAMA¹, Daigen FUKAYAMA², Yuichi NAGANO², Tatjana JANTZEN³, Klaus HACK³ (1. Japan Atomic Energy Agency, 2. Research Center of Computational Mechanics, Inc., 3. GTT-Technologies)

Keywords:high-level radioactive waste, vitrified waste, thermodynamic data, computational phase diagram, CALPHAD method

The thermodynamic data of glass medium and FP, essential for estimation of the technical development of HLW as vitrified waste, is obtained by the CALPHAD method. As Ru-Rh-Pd-SiO₂-B₂O₃-Na₂O-Li₂O system could be constructed this time, it became possible to construct the phase diagram and/or estimation of FP loading amount under various conditions.