About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Element Alloys II
|
Presentation Title |
Ion-beam Modification of High-entropy Oxides |
Author(s) |
William J. Weber, Candice Kinsler-Fedon, Lauren Nuckols, Anamul H Mir, Brianna Musico, Ashish Kumar Gupta, Ritesh Sachan, Christopher Nelson, David Mandrus, Yanwen Zhang, Veerle Keppens |
On-Site Speaker (Planned) |
William J. Weber |
Abstract Scope |
High-entropy oxides have recently gained recognition for their low thermal conductivity and tunable mechanical capabilities, but little is known about their response to ion irradiation. In this work, the heavy-ion irradiation response of high-entropy oxides (HEO) with the pyrochlore and perovskite structures have been investigated. The damage accumulation behavior at 300 K due to 4 MeV Au ion irradiation of a <100>-oriented HEO titanate pyrochlore single crystal has been investigated by Rutherford backscattering spectrometry in channeling geometry. Transmission electron microscopy with in situ irradiation using 600 keV Xe ions has been employed to determine the temperature dependence of amorphization in the same HEO pyrochlore composition. Ion tracks formed in a HEO perovskite structure irradiated with 774 MeV Xe ions have been characterized by transmission electron microscopy. The results obtained on these HEOs are compared to those of single-component counterparts. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Phase Transformations, Characterization |