| 摘要 |
PURPOSE:To improve magnetic characteristic and facilitate the manufacture of this magnet by containing magnetic powder materials having specific compositions of rare earth element--iron - nitrogen - hydrogen and oxygen. CONSTITUTION:This magnet contains rare earth elements - iron - nitrogen - hydrogen - oxygen system magnetic power materials expressed by an formula I. In the expression I, being expressed by atomic percentages, alpha-delta satisfy formulas II-V and Re is rare earth element containing yttrium. As to the rare earth elements - iron - nitrogen - hydrogen - oxygen system magnetic materials which are used, even through they are formed into fine grains having about each size 2-3mum, they have characteristics to hold also a high magnetic characteristic. In this way, the magnetic characteristic is improved and a magnet is manufactured easily. |
