About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Radiation Effects in Metals and Ceramics
|
Presentation Title |
Microstructural Characterization of Nuclear Graphite Irradiated at Temperatures below 230˚C |
Author(s) |
David David Arregui-Mena, Wenjing Li, Lori Walters, Philip D Edmondson, Cristian Contescu |
On-Site Speaker (Planned) |
David David Arregui-Mena |
Abstract Scope |
Graphite is a moderator material and structural materials of multiple Generation IV reactors concepts and British Advanced Gas-cooled Reactors (AGR). Failure of multiple graphite components can limit the lifetime of an AGR and some Generation IV designs. As part of the endeavor to understand the neutron irradiation effects in graphite Transmission Electron Microscopy (TEM), the Brunauer-Emmett-Teller (BET) and other characterization techniques will be combined in this research to determine the effects of irradiation under low temperature conditions (<300˚C). It is expected that temperatures below 300˚C and neutron irradiation will lead to significant changes of the crystal structure of graphite. In this case the Brunauer-Emmett-Teller (BET) method will be use to understand the pore evolution in graphite. TEM characterization will elucidate the possible lattice effects induced by low temperature and irradiation. Neutron irradiation defects using these techniques at these low temperatures have never been documented before making this research unique. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |