[1B04-06] Vitrification 2

[1B05] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(126) Examination of YP formation mechanisms by experiments using zirconium molybdate as a starting material (3)

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

Keywords:vitrification, yellow phase, XAFS, synchrotron radaiation

We have performed XAFS analysis of heat-treated test samples of zirconium molybdate as starting material under various conditions. In the present work, we investigate the formation of calcium molybdate after heating in two ways: with sodium in the glass or outside the glass. The XAFS analysis revealed that more calcium molybdate was formed at lower temperatures in the case of sodium outside the glass.