电化学沉积参数对Fe-B薄膜结构及磁致伸缩性能的影响  

Effects of electrochemical deposition parameters on the structure and magnetostrictive effect of Fe-B thin films

作　　者：盛智芝[1,2] 张敏刚[1] 程忠阳[2] 柴跃生[1] 陈峰华[1] 

机构地区：[1]太原科技大学材料科学与工程学院,山西太原030024 [2]奥本大学材料研究与教育中心,美国奥本36849

出　　处：《磁性材料及器件》2013年第2期9-12,20,共5页Journal of Magnetic Materials and Devices

基　　金：高等学校博士学科点专项科研基金资助项目(20101415110003)

摘　　要：用电化学沉积法制备Fe、B摩尔比接近80/20的Fe-B磁致伸缩薄膜,研究了电流密度和溶液组分对Fe-B薄膜结构及形貌的影响。利用阻抗仪研究了Fe-B薄膜的共振频率。结果表明,制备的Fe-B薄膜呈现出非晶混合少量纳米晶的结构特征;薄膜厚度随NaOH浓度的增大而增大,但非晶相随NaOH浓度的增大而减少;Fe-B薄膜具有显著的磁致伸缩效应,薄膜的共振频率随着样品长度的增加而减小;用4 mA/cm2电流密度制备的薄膜共振频率最显著。Fe-B thin films with compositions close to 80/20 mole ratio were preprared using electrochemical deposition. Effects of current density and solution components on the structure and morphology of Fe-B thin films were experimentally studied. The magnetostrictive effect of Fe-B thin films was measured by impedance analyzer. Fe-B thin films showed amorphous phase mixed with a small amount of nanocrystals. The thickness of the films increases with increasing the concentration of NaOH, while the amorphous formability decreases with increasing the concentration of NaOH. Fe-B thin films exhibits obvious magnetostrictive effect. The resonance frequency of the film decreases with increasing the length of the sample. Among the different current densities, the films fabricated under 4 mA]cm2 exhibits the strongest resonance frequency.

关 键 词：Fe80B20 电化学沉积 磁致伸缩 共振频率 

分 类 号：O484.43[理学—固体物理] O482.526[理学—物理]