Oxidation mechanism and mechanical property of SiC coating in TRistructural ISOtropic fuels under steam contained environments

The oxidation performance of silicon carbide (SiC) coating on nuclear fuel particle and the subsequent effect mechanical integrity was investigated. effects steam content phase composition microstructure SiC layer at different temperatures were discussed. Reaction rates with found to obey liner-parabolic law. fracture strength shell evaluated, which dominated by thickness variation SiC. Furthermore, finite element analysis performed simulate stress distribution in during crush test. results revealed reduced caused had higher concentration inner surface resulted a lower value.