|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Materials and Fuels for the Current and Advanced Nuclear Reactors V
||AA-3: Fabrication of Interconnected SiC Reinforced ZrO2 Composites by the Coat-mix Process and Spark Plasma Sintering
||Qusai Mistarihi, Hojin Ryu
|On-Site Speaker (Planned)
In order to simulate the enhanced thermal conductivity of oxide fuel by adding high thermal conductivity materials, the formation of interconnected SiC phase in ZrO2 pellet composites were investigated. The coat-mix process using Si powder, phenolic resin polymer precursor or carbon black powder, and ZrO2 powders was employed. Sintering of mixed powder of granulated ZrO2 powder and carbon-coated silicon powder was performed using spark plasma sintering at temperatures up to 1500oC. The sintered samples were characterized by scanning electron microscopy (SEM), X-ray diffractomertry (XRD), and energy-dispersive X-ray analysis (EDAX). An interconnected second phase with the composition of Si, C, and SiC was observed in the microstructure of the sintered pellets. The formation of interconnected SiC-ZrO2 composites could be attributed to the reaction between Si and coated carbon and the granulation of ZrO2.
||Planned: A print-only volume