| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Elements Alloys X: Alloy Development and Properties
|
| Presentation Title |
Hydrogen Storage Characteristics of Multi-principal Element Alloys and Composites |
| Author(s) |
Jurgen H. Eckert |
| On-Site Speaker (Planned) |
Jurgen H. Eckert |
| Abstract Scope |
This talk explores the hydrogen storage performance of multi-principal element alloys including high entropy alloys, single- and multiphase mixtures and composites synthesized using rapid quenching or powder metallurgy for tuning phase formation and microstructure development. The role of composition and nanostructuring will be critically assessed with respect to structural stability and evolution of hydrogen storage characteristics upon electrochemical and gas-solid reactions. Examples for composition fine-tuning and the role of grain boundaries on the storable amount of hydrogen and the uptake and release kinetics will be discussed and analyzed as ways to control the volumetric hydrogen uptake, the adsorption/desorption behavior and the tong-term cyclic stability of the material. Besides metallic systems, also examples for metal/polymer composites and membranes for hydrogen separation will be given, attempting to derive guidelines for how to tune phase formation, microstructure and properties of chemically complex multi-principal element alloys with optimized hydrogen storage properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Energy Conversion and Storage, Phase Transformations |