| 摘要 |
PURPOSE:To provide a permanent magnet with higher energy product, by a method wherein the rare-earth metal such as Sm and Ce, and Co intermetal compound are combined to form the material of the magnet of which hysteresis curve angle is improved. CONSTITUTION:An alloy made for a magnet is R(CO1-x-y-zFexCuyMz)A, in which R represents a combination of one or more than two kinds of the rare-earth metal such as Sm and Ce, while M represents a combination of Mo and H and Ti and Cr. The value of x, y, z represents 0.01<=x<=0.40, 0.02<=y<=0.025, 0.001<= z<=0.15 and 6.5<=A<=8.3. As a result, a permanent magnet of which remained magnetic flux density, retaining capacity, and Curie temperature are high, respectively, as well as its temperature characteristics is excellent is provided. |
