| 摘要 |
PURPOSE:To enhance the magnetic efficiency of an R-Fe-B anisotropic magnet, and to facilitate its manufacture. CONSTITUTION:The title permanent magnet is composed of a rare-earth element of 10 to 21 atomic %, boron of 3 to 15 atomic %, and the remaining part consisting of an iron group element and inevitable impurities. When the iron- group element is 100 atomic %, its X-atomic % is replaced with cobalt, and Y-atomic % is replaced with nickel. X is 30 atomic % or smaller, and Y is 1.5 atomic % or smaller, the alloy of raw material, having (X+10Y) of 11 atomic % or more, is formed into spherical powder by a gas atomizing method in which inert gas is used, and a molded article is formed by plastically processing the powder at 550 to 800 deg.C. |
