Atomistic level study of Ce3Si2 oxidation as an accident tolerant nuclear fuel surrogate
Source abstract
Abstract
The oxidation mechanisms of Ce3Si2 (as a surrogate for U3Si2 accident tolerant nuclear fuel) have been studied to 750 °C in flowing air. Discrepancies between the terminal and theoretical mass gains for complete oxidation, similar to previous works on the U3Si2 system are attributed to incomplete oxidation of Si, which forms amorphous SiO2 and regions of nano-crystalline free Si. Nano-grained (<5 nm) CeO2 also formed after oxidation leading to pulverisation, the resulting composition and nano-structure may have highly deleterious consequences for the fuel material under oxidative atompsheres, increasing the rate of oxidation, spallation and fission product release.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Nuclear Materials and Properties · Nuclear materials and radiation effects · Radioactive element chemistry and processing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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