Ceramics based on the general compositions CaLnXNbO7 (where Ln = La, Nd and Sm, and X=Zr and Sn) have been prepared, and irradiated with 1 MeV Kr ions at the IVEM-TANDEM user facility. The radiation tolerance of these materials has been found to be less than Zr and Hf equivalents. The results also suggest that the amorphisation cross section for these materials is related to the Ln component, and is similar to those observed for Zr and Hf equivalents.
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Whittle, K.R., de los Reyes, M., Blackford, M.G. et al. The Role of Sn, Zr and Hf in the Radiation Damage in II, III, IV and V Pyrochlores. MRS Online Proceedings Library 1383, 29–34 (2011). https://doi.org/10.1557/opl.2012.519