[2K17-21] Vitrification 2

5:25 PM - 5:40 PM JST(8:25 AM - 8:40 AM UTC)

[2K19] Basic Research Programs of Vitrification Technology for Waste Volume Reduction(130) Examination of YP formation mechanisms by experiments using zirconium molybdate as a starting material (4)

*Yoshihiro Okamoto¹, Takayuki Nagai¹, Nanako Katsuoka¹, Daisuke Akiyama², Akira Kirishima² (1. JAEA, 2. Tohoku Univ.)

Keywords:

Vitrification,XAFS,Yellow phase,Synchrotron radiation

XAFS analysis was performed on heat-treated samples under various conditions using zirconium molybdate as the starting material, and knowledge was gained about the mechanism by which calcium molybdate is produced, its distribution state such as aggregation, the effect of the presence or absence of sodium, etc. It was found that whether sodium is inside or outside the raw glass causes a large difference in the ease with which molybdate aggregates.