Method for manufacturing rare earth magnet
AssigneeLG Innotek Co., Ltd.
InventorsHyun Seok LIM, Goon Seung GONG, Hyun Min NAH, Dong Hwan KIM, Won Kyu PARK, Seok BAE
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Abstract
An embodiment discloses a method of manufacturing a rare-earth magnet, the method including: preparing a magnetic sintered body including RE, Fe, and B as compositional components (RE is selected from one or two or more selected from rare earth elements); applying a solution containing a grain boundary diffusion material to the sintered body; and performing grain boundary diffusion by heat-treating the sintered body, wherein the grain boundary diffusion material includes a heavy rare earth element (HREE) hydride and a light rare earth element (LREE) hydride.
Claims21
1-10. (canceled)
A method of manufacturing a rare-earth magnet, the method comprising:
- preparing a magnetic sintered body including RE, Fe, and B as compositional components (RE is selected from one or two or more selected from among rare earth elements);
- applying a solution containing a grain boundary diffusion material to the magnetic sintered body;
- and
- performing grain boundary diffusion by heat-treating the magnetic sintered body,
- wherein the grain boundary diffusion material comprises a heavy rare earth element (HREE) hydride and a light rare earth element (LREE) hydride.
A method of manufacturing a rare-earth magnet, the method comprising:
- preparing a magnetic sintered body including RE, Fe, and B as compositional components (RE is selected from one or two or more selected from among rare earth elements);
- applying a first solution containing a first grain boundary diffusion material to the magnetic sintered body;
- performing a first grain boundary diffusion by heat-treating the magnetic sintered body;
- applying a second solution containing a second grain boundary diffusion material to the magnetic sintered body;
- and
- performing a second grain boundary diffusion by heat-treating the magnetic sintered body.
Dependencies are inferred from the claim text.