|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Materials and Fuels for the Current and Advanced Nuclear Reactors VII
||F-17: Effect of Pd on the Grain Boundary Character Distribution in SiC
||Felix Cancino-Trejo, David Navarro-Solis, Eddie Lopez-Honorato
|On-Site Speaker (Planned)
One of the main challenges remaining on the development of TRISO fuel particles is the understanding of the diffusion of Ag through SiC. Although Ag diffusion does not appear to be controlled purely by changes in chemical composition, Pd is one element that appears to participate in the diffusion of fission products. In this work we show that Pd is capable of transforming the grain boundary character distribution in SiC, leading to a larger concentration of interconnected high-angle grain boundaries, that could enhance the diffusion of other elements. We also show that the globular structures generally seen during the diffusion process are affected by the cooling rate during heat treatment.
||Planned: Supplemental Proceedings volume