| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Low-oxygen Ti Powders Prepared from TiO2 through Combining Metallothermic Reduction with Electrochemical Reduction |
| Author(s) |
Xinyu Zhou, Zhihe Dou, Ting-an Zhang |
| On-Site Speaker (Planned) |
Xinyu Zhou |
| Abstract Scope |
In the present study, an effective and low-cost method is reported to prepare low-oxygen Ti powder, which includes two experimental steps: the fast conversion of TiO2 to TiOx<1 powder by metallothermic reduction process and the generation of low-oxygen Ti powder by electrochemical reduction process in molten CaCl2. The key intermediate steps were analyzed by XRD, SEM, and electrochemical testing techniques. The results demonstrated that TiOx<1 powder (TiO0.325 and TiO0.97) was generated after acid leaching the MgO in metallothermic reduced products, and the TiOx<1 powder with 16.3 wt% oxygen could be transformed into pure titanium powder with 500~700 ppm oxygen by electrochemical reduction at a constant potential of -1.8~-3.3 V for 10 h. The successful preparation of low-oxygen Ti powers reveals the potential and feasibility of our process and maybe provide a new sight for generating other active metal powders(Zr, Hf, or other Ti-based alloy powders). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Powder Materials, Electrometallurgy |