分享好友 知识库首页 频道列表

MAGNETIC POWDER

2025-06-20 20:203360下载
文件类型：PDF文档
文件大小：80K
PROBLEM TO BE SOLVED : To provide a rare earth-iron-nitrogen-based magnetic powder which has superior coercive force, has a superior rectangularity ratio, and can retain magnetic properties even in the atmosphere of 350°C or higher without catching fire, and to provide a manufacturing method therefor. SOLUTION : The magnetic powder has a composition expressed by the general formula of RxT100-x-y-zNyMz so as to make M component distributed abundantly in the surface side of the powder, and has a crystal structure of single crystal Th2Zn17, wherein R represents at least one of rare earth elements including Y; T represents at least one metal of Fe and transition metals; M represents at least one element or an oxide thereof, which has standard Gibbs energy in a range of minus 80 kcal to minus 300 kcal at a temperature between 300 and 1, 200°C; 3
反对 0
举报 0
收藏 0
打赏 0
评论 0