About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Magnetics and the Critical Materials Challenge: An FMD Symposium Honoring Matthew J. Kramer
|
Presentation Title |
Challenges in Affordable, Reliable Permanent Magnets |
Author(s) |
Matthew Kramer |
On-Site Speaker (Planned) |
Matthew Kramer |
Abstract Scope |
Increasing global efforts to reduce CO<sub>2</sub> is putting additional demand on high performance permanent magnets (PM) for efficient renewable energy generation and electrification of transportation. Demand for PM for these applications, and rare earths elements (REE) used to make them, is expected to double by 2030. Reducing supply chain criticality for REE, especially heavy REEs (HREE), is a multifaceted challenge. Improved processing can minimize and even eliminate the HREE in 2-14-1 based compounds in most applications, but can this be done economically? Increased utilization of Ce and La can reduce supply chain criticality of Nd and Pr but can this be achieved without sacrificing performance, in particular, without Co, a critical element? Can lower cost PM using non-critical elements fill in the gap for moderate performance PM lowering overall demand for higher performance PM? This talk will touch on these challenges and the processing-property relationships for improving remanence and coercivity. |
Proceedings Inclusion? |
Planned: |
Keywords |
Magnetic Materials, Solidification, Phase Transformations |