The Science & Technology
of Glass
Cambridge - Monday 4th to
Wednesday 6th September 2017



Prince Rautiyal
<Prince.Rautiyal@student.shu.ac.uk>

article posted 14 June 2017


Prince Rautiyal earned his Bachelor's degree in Physics from University of Delhi, India followed by Master's in Nuclear Science from University of Delhi, India. He is currently a first-year PhD student in Material and Engineering Research Institute, Sheffield Hallam University, Sheffield, United Kingdom. His PhD subject is to “Understand the structure properties and performance of glasses for radioactive waste immobilisation using advanced spectroscopic techniques”.


Irradiation effects in Indian and UK high level radioactive waste glasses
Prince Rautiyal*.a, Hywel Jonesa and Paul A. Binghama
Materials and Engineering Research Institute, Sheffield Hallam University, Sheffield S1 1WB, UK

High level radioactive waste (HLW) contains long lived fission products and minor actinides which will continue to decay for thousands of years. HLW is immobilised in borosilicate glass matrices prior to final geological disposal [1]. Thus, to understand safety to the environment and humans, the behaviour of HLW glass subjected to irradiation from radionuclides present in waste forms over longer periods must be investigated thoroughly. The present study builds on previous research on radiation damage in HLW borosilicate glasses [2]. The Indian SB44 (sodium barium borosilicate) and the UK MW (mixture wind scale) borosilicate base glass have been studied. The initial phase of this work focuses on understanding the structure of un-irradiated glasses using EPR, Raman and Mossbauer s pectroscopies, and SEM / EDS, XRD and XRF. XRD results confirm that prepared glasses are X-ray amorphous. The second phase of this work will focus on fully simulated, waste-loaded MW and SB44 HLW glasses and acquiring knowledge on structural evolution under irradiation. A comparison between doped and undoped pristine and irradiated glasses will be carried out using advanced spectroscopic techniques.

Keywords: High level nuclear waste; Borosilicate glasses; Raman spectroscopy; Electro paramagnetic resonance spectroscopy; Mössbauer spectroscopy;

Reference:

[1] Tribet, M., Rolland, S., Peuget, S., Broudic, V., Magnin, M., Wiss, T. and Jegou, C., Irradiation Impact on the Leaching Behaviour of HLW Glasses, Procedia Materials Science 7 (2014) 209-215.

[2] Ewing, R. C., Weber, W. J. and Clinard, F. W., Radiation effects in nuclear waste forms for high-level radioactive waste, Progress in Nuclear Energy 29 (1995) 63-127.