|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Nanostructured Materials for Nuclear Applications
||Phase Stability and Solute Redistribution at Metal-oxide Interface under Ion Irradiation
||Nan Li, Yun Xu, Satyesh Yadav, Jeffery Aguiar, Osman Anderoglu, Yongqiang Wang, Amit Misra, Hongmei Luo, Blas Uberuaga
|On-Site Speaker (Planned)
Metal-oxide multilayer nanocomposite was used as a model for understanding the evolution of interface structure and diffusion behavior of Cr in irradiated oxide-dispersion-strengthened (ODS) steels. The thin films, containing chemical sharp metal-oxide interfaces (FeCr-TiO2, FeCr-Y2O3), were deposited on MgO (100) substrate at 500 °C, ensued with irradiation by 10Mev Ni3+ ions at temperature 500 °C. In comparison, the pristine nanocomposite has been annealed at 500 °C. Microchemistry and microstructure evolution of metal/oxide multilayer was investigated and we found for FeCr-TiO2 and FeCr-MgO interfaces, radiation enhanced/accelerated Cr diffusion into oxide. But for FeCr-Y2O3 interface, radiation cause Cr diffusion into oxide. Meanwhile, amorphization has been enhanced by Cr diffusion. We believe the knowledge obtained from this work provides guidelines for designing metal-oxide composite with desired radiation tolerance under irradiation.
||Planned: A print-only volume