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Surface Alteration of Borosilicate and Phosphate Nuclear Waste Glasses by Hydration and Irradiation

Author

Listed:
  • Bella Y. Zubekhina

    (V.G. Khlopin Radium Institute, 28, 2nd Murinskiy Ave., Saint Peterburg 194021, Russia)

  • Boris E. Burakov

    (V.G. Khlopin Radium Institute, 28, 2nd Murinskiy Ave., Saint Peterburg 194021, Russia
    Ioffe Institute, 26 Politekhnicheskaya, Saint Petersburg 194021, Russia)

  • Michael I. Ojovan

    (Department of Radiochemistry, Moscow State University Named after M.V. Lomonosov, Leninskie Gory 1, Bd.3,Moscow 119991, Russia
    Department of Materials, South Kensington Campus, Imperial College London, Exhibition Road, London SW7 2AZ, UK)

Abstract

We examined the degradation of nuclear waste borosilicate and phosphate glasses containing strong alpha-emitter 238 Pu at a specific activity of 6.33 × 10 5 MBq/g in comparison with similar non-radioactive, non-radioactive irradiated and radioactive samples containing beta- and gamma-emitters, namely radionuclides 134 Cs and 137 Cs. For irradiation and leaching experiments, we used borosilicate and phosphate glasses, which are well-known and currently used to immobilize high-level radioactive waste. The main focus was the observation of the surface of altered glasses. Comparative analysis of hydrolytic surface alteration of borosilicate and phosphate nuclear waste glasses reveals that the behavior of radioactive samples differs significantly from that of non-radioactive glasses.

Suggested Citation

  • Bella Y. Zubekhina & Boris E. Burakov & Michael I. Ojovan, 2020. "Surface Alteration of Borosilicate and Phosphate Nuclear Waste Glasses by Hydration and Irradiation," Challenges, MDPI, vol. 11(2), pages 1-11, July.
    • Handle: RePEc:gam:jchals:v:11:y:2020:i:2:p:14-:d:388312
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    Cited by:

    1. Bella Zubekhina & Boris Burakov & Andrei Shiryaev & Xiaodong Liu & Yury Petrov, 2023. "Long-Term Chemical Alteration of 238 Pu-Doped Borosilicate Glass in a Simulated Geological Environment with Bentonite Buffer," Sustainability, MDPI, vol. 15(7), pages 1-12, April.

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