He and Au ion radiation damage in sodalite, Na4Al3Si3O12Cl
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Date
2014-10
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Elsevier
Abstract
Sodalite, a candidate ceramic for the immobilisation of pyroprocessing nuclear waste, showed no observable lattice dilatation in grazing incidence X-ray diffraction when irradiated with up to 1017 5 MeV He ions/cm2. However micro-Raman scattering showed considerable spectral broadening characteristic of radiation damage near the end of the ∼22 μm He range. Partial amorphism plus nepheline formation was observed in grazing incidence X-ray diffraction when sodalite was irradiated by 1016 12 MeV Au ions/cm2. Nepheline appeared less susceptible to 12 MeV Au ion damage than sodalite, with ∼25% less amorphous fraction at 1016 ions/cm2. © 2014, Elsevier B.V.
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Keywords
Ceramics, Radioactive wastes, X-ray diffraction, Raman effect, Nepheline basalts, Radiations
Citation
Vance, E. R., Gregg, D. J., Karatchevtseva, I., Davis, J., & Ionescu, M. (2014). He and Au ion radiation damage in sodalite, Na4Al3Si3O12Cl. Journal of Nuclear Materials, 453(1–3), 307-312. doi:10.1016/j.jnucmat.2014.07.024