Fe基合金薄带磁畴结构的磁力显微镜观察  

Magnetic force microscopic observation of domain structures on Fe-based alloy ribbons

作　　者：张建强 路飞平 赵小龙 何林芳 ZHANG Jian-qiang;LU Fei-ping;ZHAO Xiao-long;HE Lin-fang(School of Electronic Information and Electrical Engineering,Tianshui Normal University,Tianshui 741001,China)

机构地区：[1]天水师范学院电子信息与电气工程学院

出　　处：《磁性材料及器件》2019年第6期9-11,17,共4页Journal of Magnetic Materials and Devices

基　　金：国家自然科学基金资助项目(61665010);甘肃省自然科学基金资助项目(18JR3RE242);天水师范学院中青年教师资助项目(ZD-2018-04)

摘　　要：采用单辊快焠法制备Fe73.3Cu1Nb3Si13.5B9非晶合金薄带,经550℃自由退火和171 MPa张应力退火处理,利用磁力显微镜(MFM)观察了自由退火和应力退火薄带表面磁畴结构及横断面介观结构。结果表明,自由退火样品具有均匀分布的纳米晶粒及易磁化方向随机分布的迷宫畴,应力退火样品具有方向优势的颗粒团聚及易磁化轴在面内的带状畴,这两种磁畴结构的形成可能与晶粒的晶化行为密切相关。We have prepared Fe73.5 Cu1 Nb3 Si13.5 B9(at%)amorphous alloy ribbons with single roller quenching method,and the surface magnetic domain and cross-sectional topography were investigated by magnetic force microscopy(MFM)on Fe-based alloy ribbons,which were treated by annealing at 550℃keep for 1 hour and conventional stress annealing with applying 171 MPa tensile stress along the length direction of the ribbon.It is observed that the unstressed samples have uniform distribution of nano-crystalline grains and maze domain while the stressed samples have directional ordering of particles cluster and the strip domain,and the maze domain samples have stochastic easy magnetization direction,however,the easy magnetization axis of the strip domain is paralleled to in-plane.We suggest that the formation of domain structures may be closely related to the crystallization behavior of grains.

关 键 词：FE基合金 退火 磁畴 磁力显微镜 立体测量法 

分 类 号：TM271.2[一般工业技术—材料科学与工程] O482.5[电气工程—电工理论与新技术]