[2O10-13] Vitrification 4

[2O13] Effects of average bonding number and non-bridging oxygen content on the MoO₃ solubility and chemical durability of borosilicate glasses

*Ryo Souma¹, Katsushige Komatsu¹, Shigeru Yamamoto¹, Akihiro Yamada¹, Jun Matsuoka¹, Kouhei Oowaku², Norio Kanehira² (1. The University of Shiga Prefecture, 2. Japan Nuclear Fuel Limited)

Keywords:Borosilicate glass, MoO3 solubility, Chemical durability, Average bonding number, Non-bridging oxygen

In order to develop high-level radioactive waste glass with high-loading capacity, effects of average bonding number of glass network and non-bridging oxygen content on the MoO₃ solubility and on the chemical durability were investigated for simplified compositions of high-level radioactive waste glass. Average bonding number is found to be the dominant factor.