摘要
Nd8 .5Fe75Co5Cu1 Nb1 Zr3B6 .5合金熔体经 18m·s- 1 快淬 ,在 670℃ / 4min退火处理后 ,制备成的粘结磁体的最佳磁性能为 :Br=0 .68T(6 8kGs) ,JHc=62 0 .3kA·m- 1 (7 8kOe) ,(BH) max=74kJ·m- 3(9 3 3MGOe)。在低Nd合金中复合添加Zr和Cu ,提高了内禀矫顽力 ,改善了磁滞回线的矩形度 ,从而提高了最大磁能积。
Nd 8.5 Fe 75 Co 5Cu 1Nb 1Zr 3B 6.5 permanent magnet was prepared by melt spun(18 m·s -1 ) and subsequent heat treatment(670 ℃/4 min). Excellent magnetic properties of the magnet can be achieved, B r=0.68 T(6.8 kGs), J H c=620.3 kA·m -1 (7.8 kOe), ( BH ) max =74 kJ·m -3 (9.33 MGOe). The addition of Cu and Zr shows to be advantageous in improving an intrinsic coercivity and squareness of hysteresis loop, and it has good energy product.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2002年第3期215-218,共4页
Journal of the Chinese Society of Rare Earths
基金
上海自然科学基金资助 (99JC14 0 18)项目
