| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Influence of Synthetic and Washing Protocols on Phase Purity and Magnetic Properties of Nd2Fe14B Powders Prepared by Calciothermic Reduction |
| Author(s) |
Rambabu Kuchi, Ihor Hlova, Jordan C. Schlagel, Yaroslav Mudryk |
| On-Site Speaker (Planned) |
Rambabu Kuchi |
| Abstract Scope |
Streamlining the Nd2Fe14B synthesis route by directly converting neodymium oxide (Nd2O3) into Nd2Fe14B powders will circumvent the most environmentally detrimental and energy intensive steps of current industrial practices, which emit several greenhouse gases as byproducts and require sustaining temperatures up to 1500°C for several hours. The calciothermic reduction-diffusion reaction of Nd2O3 mixture with Ca, Fe, and FeB in presence of Ca-based dispersant was employed to obtain high-quality, phase-pure NdFeB powders that are consistent with industry standards. Experimentation has resulted in materials with phase purities >96%, saturation magnetizations of 155-165 emu/g, and oxygen contents <1.0%, which are within or near acceptable parameters. We show that thorough removal of reaction byproducts by advanced washing protocols produces high values of magnetization in our products. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Sustainability, |