
CMI at Ames National Laboratory, University of Arizona, National Renewable Energy Laboratory and Powdermet conducted the activity for this highlight
Innovation
Developed a novel top-down synthesis of Sm2Fe17N3 magnet powder and assessed cost-effectiveness and environmental sustainability.
Achievement
- The synthesized Sm2Fe17N3 powder shows promising magnetic properties with Tc=470°C, Hc=13.5 kOe, and BHmax=19.4 MGOe.
- Estimated cost is $28/kg of Sm2Fe17N3 powder, and the projected sales price is $135/kg, demonstrating a high profit margin potential.
- Significant reduction in environmental impacts compared to Sm-Co and Nd-Fe-B magnets by eliminating the use of Co, Nd, Pr, and Dy.
Significance and Impact
- Identified a sustainable pathway for producing Sm2Fe17N3 magnet powder.
- Next step is to optimize and scale-up the magnet production.
Hub Target Addressed
Accelerated magnet discovery and maturation.
