Cerium Gap Magnets: 2023 R&D100 Award

Cerium Gap Magnets: Upper figure – the kg-scaled cast from the Ames National Lab MPC and compression molded bonded magnets from BUNTING-DuBois. Lower figure – schematic explanation of the gap magnet opportunity.
Cerium Gap Magnets: Upper figure – the kg-scaled cast from the Ames National Lab MPC and compression molded bonded magnets from BUNTING-DuBois. Lower figure – schematic explanation of the gap magnet opportunity.

CMI researchers from Ames National Laboratory conducted the research for this highlight.

Innovation
Scaled-up casting, and compression molding of Cerium gap magnets for automotive, sensing and related applications. 

Achievement
Cerium gap magnets are efficiently cast, with performance beyond hard ferrites, on a kg-scale using a one-step process and noncritical Ce. 

Significance and Impact
Strong performance and efficient production addresses supply risk and reduces energy consumption, freeing-up critical Nd and Dy from middle energy applications by using abundant Ce.

Hub Target Addressed
Win industry adoption of three technologies related to materials substitution for rare earth magnet materials. 

image of R&D 100 Award

image of U.S. Patent
Image of U.S. patent