作　　者： ; ; ; ; ; ; ; ;

机构地区： 西安建筑科技大学材料科学与工程学院

出　　处： 《功能材料》 2011年第6期1083-1085,共3页

摘　　要： 采用单辊快淬法制备Fe36Co36Nb4Si4.8B19.2(FeCo基合金)薄带,在流动的气体中,施加不同的张应力并通以直流电进行退火,采用HP4294A型阻抗分析仪测量纵向驱动巨磁阻抗效应(LDGMI)曲线。对系列LDGMI曲线特征与外加张应力关系的分析结果表明,在流动气体中进行电流退火的FeCo基合金薄带,外加张应力的作用是感生横向易磁化结构,通过这种横向易磁化结构的控制,可以有效地改变LDGMI曲线的形状。该研究结果对于开发能满足各种实际需求的新型GMI传感器具有现实的指导意义。 The Fe36Co36Nb4Si4.8B19.2（FeCo-based） amorphous ribbon was prepared by single roller quench and annealed with Joule-heat in flowing atmosphere under tesile stress.The longitudinally driven giant magneto-impedance（LGMI） effect of the stress-Joule-heated FeCo-based ribbons were measured with HP4294A impedance analyzer.The results from analyzing the relation between the tensile stress and the character of the stress-Joule-heated FeCo-based ribbon LDGMI effect curves shows that,the transverse magnetic easy axial will be induced after the tensile stress applied during the proccess of the FeCo-based ribbon being Joule-heated in flowing atmosphere.The shape of the LDGMI curves can be effectively changed by controlling the transverse magnetic easy axial.This result is very important for develop the new GMI magnetic sensor which will be appropriate for various applications in future.

关 键 词： 巨磁阻抗效应 感生磁各向异性 基合金薄带 焦耳热 退火

领　　域： [电气工程] [一般工业技术] [理学] [理学]