| 摘要 |
PROBLEM TO BE SOLVED: To provide rare-earth magnet powder which is heat treated at a high temperature hydrogen having high anisotropy, and to provide the manufacturing method of the rate-earth magnet powder. SOLUTION: (1) This rare-earth magnet powder which is heat-treated by high temperature hydrogen is composed of a rare-earth element (R) containing yttrium of 11 to 15 at%, and one or two kinds of Ga and Nb of 0.01 to 1.0 at%, and the remaining part consisting of impurities which are inseparable from Fe. (2) The rare-earth magnet powder which is heat treated by high temperature hydrogen is composed of R of 11 to 15 at%, B of 5 to 8 at%, Co of 25 at% or less, one or two kinds of Ga and Nb of 0.01 to 1.0 at%, and the remaining part containing impurities which are inseparable from Fe. |
