|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accident Tolerant Fuels for Light Water Reactor
||In Situ Ion Irradiation of Multilayer (TiN, TiAlN) Ceramic Coating for Accident Tolerant Zr-alloy Fuel Claddings
||Jing Hu, Meimei Li, Douglas Wolfe, Mark Kirk, Arthur Motta
|On-Site Speaker (Planned)
Accident tolerant fuel (ATF) claddings are being developed to help mitigate the consequences of loss of coolant accidents in a nuclear reactor. In this study, multilayer (TiN, TiAlN) ceramic coatings with compositions of Ti20Al80N and Ti50Al50N deposited on ZIRLOŽ were subjected to ion irradiation in situ. Preliminary in situ ion irradiation of samples with 1 MeV Kr ions at 300 °C up to 20 dpa on the coatings showed good irradiation resistance of the coatings with the integrity of the coatings remaining after irradiation. No irradiation defects above 1 nm during irradiation and obvious change in existing coating columnar grain structure and size were observed. A limited amount of porosity at the interface did not to grow under irradiation, and the coating showed good adhesion to the Zr matrix. Detailed analysis of ion irradiated samples provided a better understanding of the irradiation performance and clearer guidance for future neutron irradiations.
||Planned: Supplemental Proceedings volume