About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fundamentals of Sustainable Metallurgy and Materials Science
|
| Presentation Title |
Effects of Oxygen Partial Pressure and Basicity on Liquid Phase Formation of Low-Silica Sinter |
| Author(s) |
Dongqing Wang, Wen Pan, Zhixing Zhao, huaiying Ma, Yapeng Zhang |
| On-Site Speaker (Planned) |
Dongqing Wang |
| Abstract Scope |
Sintering is a critical process in iron production. This study aims to investigate the effects of varying oxygen partial pressure and basicity (CaO/SiO₂ mass ratio) on phase assemblages and liquid phase characteristics formed during iron ore sintering under low-silica conditions. Synthetic sinter specimens were prepared using chemical reagents under simulated sintering atmospheres. Electron probe microanalysis (EPMA) was employed to characterize the mineral phase composition, microstructure and liquid phase chemistry of sintered samples. The results reveal that at a constant oxygen partial pressure, the volume fraction of sinter liquid phase rises while liquid viscosity declines with increasing sinter basicity. For a fixed basicity, increasing oxygen partial pressure facilitates the generation of more liquid phase. This research clarifies the key governing rules through which oxygen partial pressure and basicity jointly regulate phase equilibrium during sintering. It provides an important theoretical foundation for optimizing sinter blending and process parameters to produce sinter. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Process Technology, |