| 摘要 |
PURPOSE:To improve magnetic properties including residual magnetic density as a representative one by sintering and forming a green compact with specific proportions of rare earth metal and the other metals and a specific composition of the rare earth metal and the other metals. CONSTITUTION:By sintering a green compact composed of a certain type of alloy, a permanent magnet with enhanced residual magnetization features can be obtained. This green compact contains rare earth metal (R) and other metals at an atomic ratio of 1:7-9. Further, the rare earth metal (R) consists of Pr or a lanthanoid element that contains Pr at an atomic percentage of 70% or higher. The other metals include Co, Fe, Cu and other transition metals (T) with an atomic percentage of 15-40% Fe, 5-20% Cu, 1-6% T, and the remainder Co. The other transition metals (T) consist of either one or tow of Zr. Ti, and V. |
