Right – magnetic TGA experiments showing significant increase (> 65oC) of Curie temperature relative to the Ce-based material.
CMI researchers from Ames National Laboratory conducted the activity for this highlight
Innovation
Novel Iron-rich magnets for U.S. national needs.
Achievement
Discovery of new 1:3-type Yttrium-Zirconium-Iron ferromagnet, isostructural to earlier discovered Cerium-based material, with significantly increased Curie temperature, and potentially suitable for the development of cost-effective permanent magnet (see Figure).
Significance and Impact
Material contains no critical elements.
Saturation magnetization of 8.5 kG, Curie temperature of 348 oC (> 620 K). These are intrinsic indicators, upon optimization, of high-temperature Iron-rich, practical ~ 20 MGOe permanent magnet.
Hub Target Addressed
Accelerated discovery and deployment of new permanent magnets