About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Magnetic Materials for Energy and Power Conversion Applications
|
Presentation Title |
Magnetic Field-assisted HDDR Processing of NdFeB Powders |
Author(s) |
Michael S. Kesler, Xubo Lui, Ikenna Nlebedim, Matthew Kramer, Michael McGuire |
On-Site Speaker (Planned) |
Michael S. Kesler |
Abstract Scope |
The production of bonded magnets is the largest domestic permanent magnet industry and there is a need for a domestic supply of high-performance powders for their applications. Hydrogenation-disproportionation-desorption-recombination (HDDR) is an effective process for producing iso- and anisotropic powders for bonded magnet applications. Enhancing the powder performance would reduce the volume of costly rare earths needed for a given application. Applying magnetic fields to gaseous reactions provides the potential to improve these processes via the Zeeman affect, resulting in higher reactivity of the gaseous environment. Here we report the design and construction of a custom built HDDR reaction vessel for use in a 12.7 cm bore 9 Tesla superconducting magnet. We summarize results of our studies of the effects of high magnetic field applied during HDDR processing on the microstructure and magnetic properties of NdFeB-based alloys. |
Proceedings Inclusion? |
Planned: |