CMI Project 2.1.15: Heterogeneous Sm-Co and Nd-Fe-B magnets

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Principal Researchers

Baozhi Cui at Ames Laboratory leads the CMI project "Heterogeneous Sm-Co and Nd-Fe-B magnets"

Project Description: Rare-earth permanent magnets (REPMs) have excellent magnetic properties and have been widely used in energy conversion and storage, telecommunication, consumer electronics, and sensors. However, REPMs are quite brittle and impossible for applications with high stress and vibration. The brittleness also leads to the magnet production loss up to 30%. This project is to produce REPMs (mainly Sm-Co and Nd-Fe-B sintered magnets) mechanically and magnetically stronger than the commercial products while reducing REPM waste rate to < 10%. The novel magnets will be more powerful, more efficient, and less-weight for energy-related applications while reducing the pressure on critical material supply chain.