About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fundamentals of Sustainable Metallurgy and Materials Science
|
| Presentation Title |
Temperature Dependent Phase Evolution and Product Morphology during Hydrogen Reduction of Iron Oxide (Fe₂O₃) and Nickel Oxide (NiO) |
| Author(s) |
Kamran E. Lone, Bilal Mansoor |
| On-Site Speaker (Planned) |
Kamran E. Lone |
| Abstract Scope |
The global shift toward decarbonization and sustainability has renewed interest in hydrogen as a clean reductant for metal oxide processing. This study will compare the hydrogen reduction of Fe₂O₃ and NiO under identical flowing hydrogen atmospheres across varying temperatures. Fe₂O₃ follows a multi-step reduction pathway through thermodynamically stable intermediates Fe₃O₄ and FeO, each imposing distinct crystallographic rearrangements and volume changes before forming metallic iron, whereas NiO converts directly to metallic nickel in a single step. By examining both systems under matched conditions, this work will explore how temperature influences the reduction behavior and resulting product microstructure differently in each system, and how the presence or absence of intermediate phases may contribute to these differences. Phase composition will be quantified using Rietveld refinement of X-ray diffraction data and product morphology will be characterized by scanning electron microscopy. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Sustainability, Other, Other |