| 摘要 |
PURPOSE:To provide a magnet sintered body, cost of which is lower than those of alumina and yttria boards which have been used and cracking, breaking and deformation of which due to a contact reaction with alumina or the yttria board and a magnet molded form at the time of sintering variation of size of which are inhibited and which has an excellent dimensional accuracy, by developing fine powder for sintering for a rate earth magnet. CONSTITUTION:Y2O3 powder sintered at a temperature of 1000 deg.C or higher and having a particle diameter of from 5mum to 500mum is used as fine powder for sintering, and a rate earth magnet molded form is manufactured in the manufacture of a rare earth magnet. |
