Fe-Ce magnet alloys as potential high-performance magnets

Figure: Calculated magnetic anisotropy of a series of substituted materials Ce2Fe15M2, with “M” as indicated on the axis. Note the strong uniaxial anisotropy for Ir alloying.
Calculated magnetic anisotropy of a series of substituted materials Ce2Fe15M2, with “M” as indicated on the axis. Note the strong uniaxial anisotropy for Ir alloying. 

CMI researchers at Oak Ridge National Laboratory conducted the research for this highlight

Achievement
First principles calculations find a substantial potential for the development of permanent magnet alloys based on abundant, inexpensive Iron and Cerium. 

Significance and impact
Development of such alloys, if achieved, would substantially impact materials criticality in permanent magnet applications, which currently depend almost completely on the availability of the critical, expensive, comparatively scarce Nd and Dy. 

Next steps
CMI ”Fe-Ce Magnet Discovery Team” established, with current plans to explore alloys based on Ce2Fe14B as potential permanent magnets.