ALLOY MATERIAL FOR R-T-B-BASED RARE-EARTH PERMANENT MAGNET, METHOD FOR MANUFACTURING R-T-B-BASED RARE-EARTH PERMANENT MAGNET, AND MOTOR

摘要

PROBLEM TO BE SOLVED: To provide an alloy material for an R-T-B-based rare-earth permanent magnet, which becomes a material of the R-T-B-based rare-earth permanent magnet, can provide a high coercive force (Hcj) without increasing the concentration of Dy in an R-T-B-based alloy, further can suppress the lowering of magnetization (Br) due to the addition of Dy and can provide superior magnetic properties, and to provide a method for manufacturing the R-T-B-based rare-earth permanent magnet using the same.;SOLUTION: The alloy material for the R-T-B-based rare-earth permanent magnet includes: the R-T-B-based alloy (wherein R represents one or more metals selected from Nd, Pr, Dy and Tb, wherein 4-10 mass% of Dy or Tb is indispensably contained in the R-T-B-based alloy; T represents a metal indispensably including Fe; and B represents boron); and a metal powder.;COPYRIGHT: (C)2011,JPO&INPIT