摘要
利用单辊急冷法制备出厚40～50μm、宽约3mm的Fe67Co9.5Nd3Dy0.5B20条带,运用磁力显微镜(MFM)的方法对该合金进行分析,从所得磁力图中看到试样退火后在基体上会析出一定量的硬磁相R2M14B(M=Fe或Co,R=Nd或Dy),其磁畴尺寸范围为200～500nm,磁畴尺寸远大于晶粒尺寸,磁畴跨越许多晶粒,即出现交换作用畴结构.
The Fe_(67)Co_(9.5)Nd_3Dy_(0.5)B_(20) melt-apun ribbons,about 40～50 μm thick and 3 mm wide,are produced by single-roller rapid quenching. It is analysed using magnetic force microscopy in this paper,and the result of magnetic force image ( MFI) shows that the sample induces a hard magnetic R_2M_(14)B(M=Fe or Co,R=Nd or Dy) phase after annealing.The range of magnetic domain size is 200～500 nm,and the magnetic domain length scale is much larger than the grain size. The domain comprises a lot of grains,which is called interaction domain.
出处
《郑州大学学报（工学版）》
CAS
2004年第3期81-84,共4页
Journal of Zhengzhou University（Engineering Science）
基金
河南省自然科学基金资助项目(0311050200)
河南省教育厅自然科学基金资助项目(2003430209)
关键词
铁基非晶态合金
磁力显微镜
硬磁相
磁畴
Fe-based amorphous alloy
magnetic force microscopy
hard magnetic phase
magnetic domain
