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The radiation response of nanostructured materials is of great interest because of the potential of nanoscale materials design for mitigating radiation damage. We report a greatly enhanced resistance to radiation-induced amorphization in nanocrystalline Gd2(Ti0.65Zr0.35)2O7 at a particle size less than 20 nm while larger crystals with the size >100 nm are radiation sensitive. The grain size of pyrochlore, Gd2(Ti0.65Zr0.35)2O7, can be controlled by mechanical milling and subsequent thermal treatment (from 800 to 1500 °C), offering the possibility of designing pyrochlore materials at the nanoscale with enhanced performance for specific radiation environments.
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Zhang et al. (2009) studied this question.
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