摘要
采用熔体快淬及晶化处理工艺制备Nd11Fe71Co8V1.5Cr1B7.5纳米晶合金。经21m·s-1快淬及640℃ 4min晶化处理后,制成的粘结磁体的磁性能最佳,为:Br=0.64T,JHc=903.5kA·m-1,(BH)max=71kJ·m-3。添加Cr元素可提高内禀矫顽力,从而提高最大磁能积。
Nd_(11)Fe_(71)Co_8V_(1.5)Cr_1B_(7.5) alloy was prepared by melt-spun and subsequent annealing. The optimum magnetic properties can be obtained after annealing the ribbons(21 m·s^(-1)) at 640 ℃ for 4 min. The remanence (B_r), intrinsic coercivity (_JH_c) and maximum energy product ((BH)_(max)) are 0.64 T, 903.5 (kA·m^(-1)), and 71 kJ·m^(-3), respectively. The addition of Cr element shows to be significantly advantageous in increasing the intrinsic coercivity and maximum magnetic energy product.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2003年第5期530-533,共4页
Journal of the Chinese Society of Rare Earths
基金
国家高技术研究发展计划(2002AA302602 2)
上海市纳米科技产业发展促进中心资助(0152nm020)项目
关键词
金属材料
纳米晶
粘结磁体
磁性能
稀土
metal materials
nanocrystalline
bonded magnets
magnetic properties
rare earths
