NSUF 18-1600: Investigation of Ag, Pd, I, Ru, and Sr fission products in bulk and grain boundaries of neutron irradiated SiC
A series of irradiation experiments have been carried out on tristructural isotropic (TRISO) and coatings under the Advanced Gas Reactor (AGR) experiments conducted in the Advanced Test Reactor (ATR) at Idaho National Laboratory. Previous characterization experiments [1] of the AGR-1 experiment were carried out with emphasis on the effects of radiation upon the microstructure with respect to fuel kernel porosity, layer degradation or corrosion, fission product precipitation, layer debonding, grain characteristics, and to develop an understanding of Ag transport mechanisms in the coatings. This study seeks to measure the Ag, Pd, I, Rb and Sr distributions in a specific neutron irradiated particle (AGR2-223) from the AGR-2 experiment. The sample for this particle is available for characterization and is currently stored at the Electron Microscopy Laboratory (EML) in the Materials Fuel Complex (MFC) at Idaho National Laboratory. Table I summarizes the sample’s irradiation data and location. This efforts will focus on developing an understanding of both, thermal and irradiation-enhanced diffusion of Ag, I, Pd, Ru, and Sr in the bulk and along the grain boundaries in the SiC component of the TRISO coating, and aims to supply data to the modelling efforts being carried out by a team at Michigan State University.
추가 정보
| 필드 | 값 |
|---|---|
| Abstract | A series of irradiation experiments have been carried out on tristructural isotropic (TRISO) and coatings under the Advanced Gas Reactor (AGR) experiments conducted in the Advanced Test Reactor (ATR) at Idaho National Laboratory. Previous characterization experiments [1] of the AGR-1 experiment were carried out with emphasis on the effects of radiation upon the microstructure with respect to fuel kernel porosity, layer degradation or corrosion, fission product precipitation, layer debonding, grain characteristics, and to develop an understanding of Ag transport mechanisms in the coatings. This study seeks to measure the Ag, Pd, I, Rb and Sr distributions in a specific neutron irradiated particle (AGR2-223) from the AGR-2 experiment. The sample for this particle is available for characterization and is currently stored at the Electron Microscopy Laboratory (EML) in the Materials Fuel Complex (MFC) at Idaho National Laboratory. Table I summarizes the sample’s irradiation data and location. This efforts will focus on developing an understanding of both, thermal and irradiation-enhanced diffusion of Ag, I, Pd, Ru, and Sr in the bulk and along the grain boundaries in the SiC component of the TRISO coating, and aims to supply data to the modelling efforts being carried out by a team at Michigan State University. |
| Award Announced Date | 2018-09-17T12:09:35.397 |
| Awarded Institution | None |
| Facility | None |
| Facility Tech Lead | Alina Zackrone, Yaqiao Wu |
| Irradiation Facility | None |
| PI | Emmanuel Perez |
| PI Email | [email protected] |
| Project Type | RTE |
| RTE Number | 1600 |