Radiation stability of Gd2Zr2O7 and Nd2Ce2O7 ceramics as nuclear waste forms
Source abstract
Abstract
Abstract Since Nd3+ and Ce4+ are usually taken as surrogates for the trivalent and tetravalent actinides, respectively, simulated nuclear waste form Nd2Ce2O7 and the potential host matrix Gd2Zr2O7 were studied in details to get a better understanding of the radiation stability of fluorite related compounds at the ultimate loading capacity. Both compounds were fabricated by traditional solid state process and irradiated with 2 MeV Xe20+ ions with dose of 0.072–91.17 dpa at room temperature. XRD results demonstrate the final fluorite phase in both compounds and their slight lattice swelling (about 0.35%) after irradiation for 91.17 dpa. Raman spectra indicate an obvious disordering of both compounds, while TEM analysis reveals atom disordering in Gd2Zr2O7 and amorphization in Nd2Ce2O7.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear materials and radiation effects · Advanced Condensed Matter Physics · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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