2024 Annual Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-1  Radioactive Waste Management

[1B04-06] Vitrification 2

Tue. Mar 26, 2024 11:05 AM - 11:55 AM Room B (21Bildg.2F 21-204)

Chair:Ryo Nakabayashi(CRIEPI)

11:20 AM - 11:35 AM

[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.