[1B11-13] Vitrification 2

[1B12] Investigation of silica structure in borosilicate glasses by Raman spectrometry

*Takayuki Nagai¹, Yoshihiro Okamoto¹, Koji Kaneko¹, Ryuhei Motokawa¹, Hiromi Kobayashi², Masanobu Homma², Kazuya Hirono² (1. JAEA, 2. E&E Techno Service Co.)

Keywords:vitrification, borosilicate glass, raman spectrum, silica structure

To understand the structural property of borosilicate glass frit for vitrification of radioactive wastes, we prepared the glass frit samples which coordinated alkaline component and B₂O₃ amount and measured the Si-O bridge structure of those samples by using Raman spectrometer. Moreover, we made the simulated waste glass samples which added non-radioactive nitrate solution to those frit and observed a change of Raman spectra by glass composition.