分享好友 知识库首页 频道列表

RARE-EARTH MAGNET

2025-06-18 08:283030下载
文件类型:PDF文档
文件大小:2190K
[Problem] To provide a rare-earth magnet which can be used even in a high-temperature environment and in which high-temperature demagnetization is suppressed. [Solution] A sintered rare-earth magnet is configured to include main-phase grains having a Ga concentration difference within the main-phase grains. In other words, the present invention provides a rare-earth magnet that contains, as a main phase, crystal grains having an R2T14B crystalline structure, wherein : main-phase grains include main-phase grains having a Ga concentration difference within the grains; by configuring the concentration ratio A (A=αGa/βGa) between αGa and βGa, when the maximum concentration of Ga in the main-phase grains having a concentration difference is termed αGa and the minimum concentration is termed βGa, to be 1.20 or more, crystal magnetic anisotropy distribution is generated in the main phase; and due to this, the impact of heat is reduced and high-temperature demagnetization is suppressed.


请登录查看


反对 0
举报 0
收藏 0
打赏 0
评论 0