Seltenerdverbundmagnet und Seltenerd-Eisen-Bor-Typ Magnetlegierung

摘要

A rare earth bonded magnet comprising magnetic powders (A) and (B) and a binder resin has a high residual magnetic flux density (Br), a large intrinsic coercive force (iHc) and a large maximum energy product ((BH)max) in spite of a low rare earth element content, and shows excellent rust preventability. A defined rare earth-iron-boron type magnet alloy suitable for use in the production of a bonded magnet has a residual magnetic flux density (Br) as high as not less than 10 kG, an intrinsic coercive force (iHc) as large as not less than 3.5 kOe, a large maximum energy product ((BH)max), and excellent rust preventability.