US Patent Issued to Central Iron & Steel Research Institute on Sept. 22 for "Grain boundary diffusion cerium-based magnet containing REFe2 phase and preparation method thereof" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,138, issued on Sept. 22, was assigned to Central Iron & Steel Research Institute Co. Ltd. (Beijing).

"Grain boundary diffusion cerium-based magnet containing REFe2 phase and preparation method thereof" was invented by Haibo Feng (Beijing), Anhua Li (Beijing) and Wei Li (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a cerium magnet with diffused grain boundaries containing REFe2 and a preparation method therefor, wherein an original cerium magnet contains a 2-14-1 main phase, a REFe2 phase and a rare earth-rich phase, and the REFe 2 phase is a CeFe2 phase or a (Ce,RE')Fe2 phase. The RE" element in a rare earth diffusion source...