Seltenerd-Sintermagnet und Herstellungsverfahren

Details

Veröffentlichungs-Nr.

EP2650887

Aktenzeichen

EP13163177

Anmeldetag

10. April 2013

Veröffentlichung

22. Juli 2020

Erteilung

22. Juli 2020

Rechtsraum

EP

IPC

H01F1/057H01F41/02

Abstract

A rare earth sintered magnet is an anisotropic sintered body comprising Nd<2>Fe<14>B crystal phase as primary phase and having the composition R<1>a T<b>M<c>Si<d>B<e>wherein R<1>is a rare earth element inclusive of Sc and Y, T is Fe and/or Co, M is A1, Cu, Zn, In, P, S, Ti, V, Cr, Mn, Ni, Ga, Ge, Zr, Nb, Mo, Pd, Ag, Cd, Sn, Sb, Hf, Ta, or W, "a" to "e" are 12 ≤ a ≤ 17, 0 ≤ c s 10, 0.3 ≤ d s 7, 5 ≤ e s 10, and the balance of b, wherein Dy and/or Tb is diffused into the sintered body from its surface.

Anmelder

Firma

Shin-Etsu Chemical Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete