| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
Microstructural engineering of the mechanical behavior in (Co,Cu,Mg,Ni,Zn)O |
| Author(s) |
Jacob Eugene Norman, Alexander Davis Dupuy, Julie Mae Schoenung |
| On-Site Speaker (Planned) |
Jacob Eugene Norman |
| Abstract Scope |
Mechanical behavior in ceramics is known to be sensitive to the presence of secondary phases. Entropy stabilized oxides provide an ideal platform for engineering mechanical behavior due to their known propensity for phase transformations and demonstrated room-temperature dislocation activity. By doping transition metal entropy stabilized oxides and leveraging their capacity for tunable phase heterogeneity through post-consolidation heat treatment, we hypothesize that the fundamental mechanical behavior and properties can be engineered. We investigate this hypothesis by doping (Co,Cu,Mg,Ni,Zn)O with Cr, Fe, Mn, and Ti oxides. Conventional sintering and subsequent heat treatment was used to consolidate the mixed powders into dense (>90% relative density) bulk samples with multi-phase microstructures. Using X-ray diffraction and scanning electron microscopy, the multi-phase microstructure was characterized and used to determine the role of post-consolidation conditions on microstructural complexity. Nanoindentation was used to study the role of composition and microstructure on mechanical behavior. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Characterization, Phase Transformations |