| 简介 |
A sintered magnet according to the present invention is a sintered magnet configured from a magnetic powder grain having Nd2Fe14B as a main component, in which : fluorine, a heavy rare earth element, oxygen, and carbon are segregated in part of grain-boundary regions of said sintered magnetic powder grain; concentration of the carbon is higher than concentration of the fluorine at a grain-boundary triple junction of the grain-boundary region; and concentration of the heavy rare earth element decreases from said grain-boundary triple junction toward an inside of said magnetic powder grain. |
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