| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
REWAS 2025: Sustainable End-of-Life Management and Recycling Solutions for Batteries, Wind Turbines, and Photovoltaics
|
| Presentation Title |
Formation and Stability of Hydrides during Hydrogenation of NdFeB Magnets |
| Author(s) |
Adamantia Lazou, Alireza Habibzadeh, Mertol Gökelma |
| On-Site Speaker (Planned) |
Mertol Gökelma |
| Abstract Scope |
Demand on magnets has increased in last decades due to their usage in the energy sector. One of the most common magnets used for the applications such as electronic devices, wind turbines, etc. is Nd2Fe14B (NdFeB). Neodymium (Nd) is one of the critical elements listed by the EU hence, the efficient use and proper recycling of Nd containing materials become of great interest. Hydrogen is commonly used during magnet production and some hydrogen-assisted recycling approaches were also reported. This study reports an analysis of formed hydrides during hydrogenation of NdFeB magnets at up to 400 °C. In addition to experimental results thermochemical modelling and simulations were performed by using FactSage software to discuss the effect of temperature and pressure on hydrogenation and the relevant phase equilibria. The study showed that the stability of phases changes with the temperature and pressure which affects the hydrogen content of phases after hydrogenation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Modeling and Simulation, Other |