| 摘要 |
<p>A method for preparing a ferrite magnet, wherein at least one element selected from the group consisting of Co, Ni, Mn and Zn is added to a ferrite which has a hexagonal M type magneto-plumpite structure and in which a part of Sr, Ba, Pb or Ca has been substituted with La and optionally at least one element selected from among rare earth elements including Y and Bi during pulverization to a fine powder, and the resultant mixture is again fired and/or sintered; and a ferrite magnet prepared by using the method. The above method which comprises the addition of the former at least one element to a ferrite having a hexagonal M type magneto-plumpite structure during the pulverization allows the preparation of a ferrite magnet having improved magnetic characteristics with the addition of a reduced amount of an element such as Co, Ni, Mn or Zn.</p> |
