成分变化、快淬速度及热处理温度对Sm(Co_(1-x)Zr_(x))_(7)合金薄带的微观组织及磁性能的影响  

Effect of Composition Change,Wheel Speed and Heat Treatment Temperature on the Microstructure and Magnetic Properties of Sm(Co_(1-x)Zr_(x))_(7) Melt-spun Ribbon

作　　者：罗琳 杜玉松[1] 李林[1,2] 陈德康 陆高毅 饶光辉[1,2] LUO Lin;DU Yusong;LI Lin;CHENG Dengkang;LU Gaoyi;RAO Guanghui(School of Materials Science and Engineering,Guilin University of Electronic Technology,Guangxi Guilin 541004,China;Guangxi Key Laboratory of Structure-Activity Relationship for Electronic Information Materials,Guilin University of Electronic Technology,Guangxi Guilin 541004,China)

机构地区：[1]桂林电子科技大学材料科学与工程学院,广西桂林541004 [2]桂林电子科技大学广西电子信息材料构效关系重点实验室,广西桂林541004

出　　处：《电工材料》2023年第4期13-19,共7页Electrical Engineering Materials

摘　　要：采用电弧熔炼和熔体快淬的方法,制备了不同成分与不同快淬速度的Sm(Co_(1-x)Zr_(x))_(7)(x=0.02~0.08)合金薄带。使用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、振动样品磁强计(VSM)等实验设备,测试了合金快淬薄带的相组成、相结构以及磁性能。实验结果表明:在Sm(Co_(1-x)Zr_(x))_(7)(x=0.02~0.08)合金薄带中,合金薄带的矫顽力随着x含量的增加逐渐变大,在x=0.08(快淬速度为45 m/s)时,合金薄带获得最大矫顽力(Hcj)为7.34 kOe;当快淬速度为45 m/s时,Sm(Co_(1-x)Zr_(x))_(7)(x=0.08)合金薄带在623 K的环境下热处理2 h,合金薄带可获得最优的综合磁性能,其矫顽力(Hcj)为7.67 kOe,剩磁(Br)为2.81 kGs,最大磁能积(BH)max为7.64 MGOe。Sm(Co_(1-x)Zr_(x))_(7)(x=0.02-0.08)melt-spun ribbon were prepared by arc melting and melt-spun methods.The microstructure of the melt-spun ribbon and magnetic properties were investigated using scanning electron microscopy(SEM),X-ray diffraction(XRD),and vibrating sample magnetometer(VSM).The experimental results show that the coercivity of Sm(Co_(1-x)Zr_(x))_(7)(x=0.02-0.08)melt-spun ribbon gradually increases with the increase of x content,and the maximum coercivity(Hcj)of 7.34 kOe is obtained at x=0.08(wheel speed of 45 m/s).when the Sm(Co_(1-x)Zr_(x))_(7)(x=0.08)melt-spun ribbon of wheel speed is 45 m/s and heat treatment at 623 K for 2 hrs,the melt-spun ribbon has the best comprehensive magnetic properties(coercivity(Hcj)of 7.67 kOe,remanence(Br)of 2.81 kGs,and maximum magnetic energy product(BH)max of 7.64 MGOe).

关 键 词：合金薄带 成分变化 快淬速度 热处理 磁性能 

分 类 号：TM273[一般工业技术—材料科学与工程] TB34[电气工程—电工理论与新技术]