【摘要】 实验表明,Sm(Co,Cu,Fe,Zr)_Z 2-17磁体的最佳成份区与Ojima所报道的不同,Sm含量不是25.5%而是27.0—27.5wt%。而且简单的固相烧结难以获得优异性能。采用液相烧结工艺,有利于准确调整和控制成分,有效地发挥多级时效处理的有利作用,显著地增强矫顽力和能积,可稳定地进行大批量制备高性能磁体。最高性能可达30.5 MGs·Oe。更多还原

【Abstract】 A study was made of the optimum composition of 2-17 type Sm(Co, Cu, Fe,Zr)_z magnets. It shows that Sm content is about 27 wt%, instead of 25.5 wt% reported by Ojima. It is shown that the liguid phase sintering process, quite other than a simple solid phase sintering, is favourable to control and to adjust exactly their compositions, to play fully the active role in step aging treatment, to enhance strongly the coercivity and the energy product and to prepare successfully magnets with excellent properties. The highest valuc of energy product, 30.5 MGs·Oe, has been obtained.更多还原