电沉积软磁铁箔性能的研究  

Performance of soft magnetic iron foil by electrodeposition

作　　者：郑精武[1] 姜力强[1] 陈巧玲[1] 

机构地区：[1]浙江工业大学化学工程与材料学院,浙江杭州310032

出　　处：《材料科学与工艺》2008年第1期38-40,共3页Materials Science and Technology

基　　金：浙江省科技厅资助项目(2004C31048)

摘　　要：为优化电沉积制备软磁铁箔的工艺条件,研究电解液温度和阴极电流密度对铁箔的磁学、力学和电学性能的影响规律,采用软磁材料测试仪、直流电阻电桥和显微硬度计研究了工艺条件变化时对铁箔的磁参数、电阻率和显微硬度的影响,并对铁箔的金相显微组织进行分析.结果表明:阴极电流密度增大时,铁箔的矫顽力增大,最大磁导率降低,显微硬度值及电阻率均提高;电解液温度提高时,铁箔的矫顽力降低,最大磁导率增大,显微硬度值下降,而电阻率提高;在650℃经过真空退火后的铁箔矫顽力降低,最大磁导率提高,其电阻率和硬度都下降,韧性明显提高.电沉积工艺条件改变时,薄膜的晶粒尺寸影响铁箔性能的变化.In order to optimize the preparation conditions of soft magnetic iron foil by electrodeposition,the principle that the electrolyte temperature and cathode current density affect the magnetic properties,electrical properties and mechanical properties of the iron fiol was studied.And the magnetic parameter,resistivity and micro-hardness of the iron fiol were tested by soft magnetic material instrument,DC resistant bridge and micro-hardness tester respectively.The metallographic microstructure of the iron fiol was analysed.The results showed that with the increase of the cathodic current density the coercive force,micro-hardness and resistivity of the iron foil increased,and the maximum permeability decreased as well.When the temperature of electrolyte was rising,the coercive force and micro-hardness of iron foil was decreasing,while the maximum permeability and resistivity were increasing.After vacuum annealing at 650 ℃,the coercive force,resistivity and micro-hardness of iron foil were reduced and the maximum permeability was increased,and the toughness was improved greatly.Different conditions of electrodepositing process result in different sizes of iron foil grains,which affect the performance of iron foil.

关 键 词：电沉积 铁箔 磁性能 电阻率 显微硬度 

分 类 号：TG132.2[一般工业技术—材料科学与工程]