摘要
用振动样品磁强计(VSM)研究了PrxFe94 3-xB5 7Zr1 (x=9 4 ,9 8,10 2 ,10 6 ,11,11 4 )系列快淬带在淬速V =2 2m s的淬态和真空退火态(6 70℃)样品的磁性能和磁滞回线的变化情况,发现该系列合金在淬速V =2 0m s下样品S2 (Pr1 1 Fe83 3B5 7Zr1 )取得了最好的磁性能为:Jr =0 76T ,Hc =977 3kA m ,(BH) max=98 8kJ m3;最佳快淬和晶化热处理都可以使软磁相与硬磁相耦合。
Magnetic properties and hysteresis loops of a series of Pr xFe 94.3-x B 5.7 Zr 1(x=9.4,9.8,10.2,10.6,11,11.4)nanocomposite ribbons prepared by melt-spinning at rolling speed V=22m/s were investigated by methods of VSM.The results show that sample S 2 has optimum magnetic properties for the investigated PrFeBZr permanent magnets prepared at the wheel speed of 22m/s.The values of the magnetic properties of sample S 2 are J r=0.76T,H c=977.3 kA/m and (BH) max =98.8kJ/m 3.Exchange coupling effects occur during optimal melt-spinning and vacuum annealing.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2005年第2期14-17,共4页
Transactions of Materials and Heat Treatment
基金
国家"8 63"资助项目 (2 0 0 2AA30 2 60 2 )
关键词
纳米复合永磁
磁性能
快淬
真空退火
nanocomposite permanent magnets
magnetic properties
melt-spinning
vacuum annealing
