RARE-EARTH MAGNET

• Main Authors: LI, Jiangnan, SEPEHRIAMIN, Hossein, HONO, Kazuhiro, NAMKUNG, Seok, TANG, Xin, OHKUBO, Tadakatsu, SONG, Sunyong
• Format: Patent
• Language: English; French; Korean
• Published: 12.08.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

A rare-earth magnet according to an embodiment of the present invention comprises: a rare-earth magnet precursor having a composition of (R1(1-x)R2x)yFe(100-y-z-v-w)CozBvTM1w in which R1 comprises Nd and/or Pr, and R2 comprises Ce; and a diffusion metal which has a composition of (LRE(100-p-q)HREp)TM2q, and which is diffused on the surface of the rare-earth magnet precursor, wherein the LRE in the diffusion metal can comprise light rare earth including Y, and the HRE can comprise heavy rare earth. Un aimant aux terres rares selon un mode de réalisation de la présente invention comprend : un précurseur d'aimant aux terres rares ayant une composition de (R1(1-x)R2x)yFe(100-y-z-v-w) CozBvTM1w dans laquelle R1 comprend Nd et/ou Pr, et R2 comprend Ce; et un métal de diffusion qui a une composition de (LRE(100-p-q)HREp)TM2q, et qui est diffusé sur la surface du précurseur d'aimant aux terres rares, le LRE dans le métal de diffusion pouvant comprendre une terre rare légère comprenant Y, et le HRE pouvant comprendre une terre rare lourde. 본 발명 실시예에 따른 희토류 자석은 (R1(1-x)R2x)yFe(100-y-z-v-w)CozBvTM1w의 조성을 가지고, 상기 R1은 Nd 및 Pr 중 적어도 하나를 포함하며, 상기 R2는 Ce를 포함하는 희토류 자석 전구체 및(LRE(100-p-q)HREp)TM2q의 조성을 가지고 상기 희토류 자석 전구체의 표면에 확산되는 확산금속을 포함하고, 상기 확산금속에서 상기 LRE는 Y를 포함한 경희토류를 포함하고, 상기 HRE는 중희토류를 포함할 수 있다.