CMI researchers at Ames Laboratory conducted the research for this highlight
Critical-element-free magnet sample demonstrates highly favorable permanent magnet properties.
Mechanochemically assisted approach to SmFe7 compound demonstrated remarkably high coercivity Hc = 27.3 kOe and BHmax = 11.3 MGOe
Significance and Impact
- Cost and Criticality: Non-critical, abundant, inexpensive materials like Fe, Sm, La and Ce ($1.78/kg of Sm2O3, $1.47/kg of La2O3, $1.50/kg of CeO2)
- Potential competitor of Nd-based magnets with comparable or better permanent magnet properties
Hub Target Addressed
Win industry adoption of three technologies related to materials substitution for rare earth magnet materials.