Method of producing rare-earth magnet
AssigneeTDK Corporation
InventorsHideki Nakamura, Noaki Mori, Hirofumi Nakano, Kouji Tanabe
Life of this patent
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Abstract
A method of producing a rare-earth magnet containing a rare-earth compound having a first rare-earth element and a second rare-earth element different from the first rare-earth element includes: a mixing step of mixing rare-earth compound powder including the first rare-earth element and subjected to a process based on hydrogenation disproportionation desorption recombination with a diffusion material including the second rare-earth element; a molding step of molding the mixed powder into a compact in a magnetic field; and a heating step of heating the compact to diffuse the second rare-earth element into the rare-earth compound powder.
Claims3
A method of producing a rare-earth magnet containing a rare-earth compound having a first rare-earth element and a second rare-earth element different from the first rare-earth element, comprising:
- a mixing step of mixing rare-earth compound powder including the first rare-earth element and subjected to a process based on hydrogenation disproportionation desorption recombination with a diffusion material including the second rare-earth element;
- a molding step of molding the mixed powder into a compact in a magnetic field;
- and
- a heating step of heating the compact to diffuse the second rare-earth element into the rare-earth compound powder.
Dependencies are inferred from the claim text.