| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
|
| Presentation Title |
Exsolution-Self-Assembly in Entropy Designed Oxide Thin Films |
| Author(s) |
William Bowman |
| On-Site Speaker (Planned) |
William Bowman |
| Abstract Scope |
While most focus on entropy designed single-phase materials, we are exploring the potential to design and utilize secondary phases in high-entropy oxides (HEOs) to introduce tunable and reversible composite properties [Vahidi (2024) Adv. Func. Mater.]. I will present our recent papers developing high-entropy nanocomposite electroceramic thin films using a flexible approach that combines traditional immiscibility driven self-assembly concepts with defect-chemistry-governed exsolution phenomena into exsolution self-assembly (ESA) [Guo (2024) Matter; (2024) Appl. Phys. Lett]. During physical vapor deposition, ESA yields HEO-based nanocomposite thin films with intricate multi-element nanostructures and precisely tailorable surfaces which we’ve used, in one case, for high-throughput electrocatalytic activity screening [Xuan…Bowman (In review)]. Importantly, by utilizing a suite of multiscale characterization down to the atomic-scale, these works provide a set of design guidelines for next-generation self-assembled nanocomposite oxide thin films incorporating entropy-designed materials, presenting a vast compositional landscape to explore and develop. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Ceramics, Composites |