[2O10-13] Vitrification 4

[2O12] High temperature observation of vitrification of borosilicate glasses with pseudo-high-level radioactive nuclear waste

*Takuhiro Miyawaki¹, Tetsuo Kishi¹, Nobuhiro Matsushita¹, Tetsuji Yano¹, Yoshiyuki Miura², Norio Kanehira² (1. Tokyo Institute of Technology, 2. Japan Nuclear Fuel Limited)

Keywords:High-level radioactive nuclear waste, x-ray computed tomograpy, waste glasses, cold cap, borosilicate glasses

Understanding of dissolution reactions between high-level radioactive nuclear waste (HLW) and glasses are indispensable for the improvement of the loading capacity of HLW into glass.
In this study, simulated cold cap was formed, and the vitrification behavior between pseudo-HLW and various borosilicate glasses was observed by high-temperature X-ray CT.