中国物理B ›› 2002, Vol. 11 ›› Issue (1): 77-82.doi: 10.1088/1009-1963/11/1/316
赵玉华1, 程力智1, 何开元1, 赵恒和1, 荣传兵2, 徐民3
Rong Chuan-Bing (荣传兵)ab, Zhao Yu-Hua (赵玉华)b, Cheng Li-Zhi (程力智)b, Xu Min (徐民)c, He Kai-Yuan (何开元)b, Zhao Heng-He (赵恒和)b
摘要: We have examined the effect of Nb addition on the thermal stability of the supercooled liquid before crystallization, the glass-forming ability and magnetic properties for the amorphous alloy series Fe73NbxAl5-xGe2P10C6B4 and Fe63Co7NbxZr10-xB20. The supercooled liquid regions (ΔTx=Tx-Tg) have maximum values of 66 and 79K, respectively, for Fe73Nb1Al4Ge2P10C6B4 and Fe63Co7Nb4Zr6B20 alloys. The saturation magnetization σs of the Fe73NbxAl5-xGe2P10C6B4 alloy system is much higher than that of the Fe63Co7NbxZr10-xB20 alloy system, and is almost unchanged with an increasing Nb content from 0 to 3 at%. But the σs of the Fe63Co7NbxZr10-xB20 alloys decreases linearly with increasing Nb content. The coercive force Hc of the two alloy series can have a minimum value of 31A/m for Fe73Nb1Al4Ge2P10C6B4 and 37A/m for Fe63Co7Nb4Zr6B20. All these values are for the ribbons annealed at 773 and 873K for 15min in vacuum.
中图分类号: (Amorphous and quasicrystalline magnetic materials)