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<p>We are investigating the use of Light Water Reactor claddings as precursor materials in zirconia-based matrices for the conditioning and transmutation/burning of actinides. This study examined two un-irradiated zirconium-rich claddings: Zircaloy-4 and M5®. After complete oxidation and characterization, both materials were converted into Yttria Cubic-Stabilized-Zirconia (YSZ) and pyrochlore (Nd<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub>), with neodymium used as a surrogate for actinides. We present preliminary results and discuss a potential scenario for an innovative back-end fuel cycle.</p> Graphical abstract <p></p>

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Zirconia-based matrices for actinide management in recycling LWR claddings

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月17日

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  • Philippe E. Raison,
  • Claudiu C. Pavel,
  • Martin Steinbrück,
  • Thierry Wiss

摘要

We are investigating the use of Light Water Reactor claddings as precursor materials in zirconia-based matrices for the conditioning and transmutation/burning of actinides. This study examined two un-irradiated zirconium-rich claddings: Zircaloy-4 and M5®. After complete oxidation and characterization, both materials were converted into Yttria Cubic-Stabilized-Zirconia (YSZ) and pyrochlore (Nd2Zr2O7), with neodymium used as a surrogate for actinides. We present preliminary results and discuss a potential scenario for an innovative back-end fuel cycle.

Graphical abstract