热处理条件对Fe_(78)Co_2Zr_8Nb_2B_9Cu_1合金的晶化过程、磁性能及巨磁阻抗效应的影响  

Effect of the Heat Treatment Condition on the Crystallization Process,Magnetic Property and Giant Magnetoimpedance Effect of Fe_(78)Co_2Zr_8Nb_2B_9Cu_1 Alloy

作　　者：刘洁[1] 于万秋[1] 王丽丽[1] 左斌[1] 赵立猛[1] 华中[1] 

机构地区：[1]吉林师范大学功能材料物理与化学教育部重点实验室,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2013年第2期62-64,70,共4页Journal of Jilin Normal University:Natural Science Edition

基　　金：吉林省科技发展计划资助项目(201105083);吉林省教育厅"十二五"科学技术研究项目(2011-158);吉林师范大学研究生创新科研计划项目(201103)

摘　　要：采用单辊快淬法制备Fe78Co2Zr8Nb2B9Cu1非晶合金薄带,在不同热处理条件下对合金进行热处理.利用X射线衍射仪(XRD)、振动样品磁强计(VSM)和阻抗分析仪研究合金的晶化过程、磁性能及巨磁阻抗效应.结果表明:Fe78Co2Zr8Nb2B9Cu1非晶合金分别在550、600和650℃经不同保温时间退火后,α-Fe(Co)衍射峰强度均随保温时间的延长而增强.不同温度退火合金的比饱和磁化强度Ms均随保温时间的延长而增大;矫顽力Hc随保温时间的变化比较复杂.通过不同保温时间退火使合金获得最大巨磁阻抗效应的过程中存在一个最佳保温时间.600℃保温60 min退火后的Fe78Co2Zr8Nb2B9Cu1合金薄带GMI最佳,高达181.4%.FeTsCo2ZrsNb2B9Cul amorphous ribbon was prepared by the single roller melt-spinning and isothermally annealed at different heat treatment conditions. The crystallization process, magnetic property and giant magnetoimpedance effect were investigated by X-ray diffraction （ XRD）, vibrating sample magnetometer （VSM） and impedance analyzer. When Fe7sCo2ZrsNb2B9Cul amorphous alloy is annealed at 550,600 and 650℃ for different holding time, the intensity of a-Fe （Co） diffraction peak increases with the increasing of holding time. M, of alloys annealed at different temperatures increase with the increasing of holding time. Hc of alloys changes intricately. There is a best holding time in the annealing process for the best value of GMI. When FeTsCo2ZrsNb2BgCu1 alloy is annealed at 600℃ for 60 min, GMI reaches the maximum value, which is up to 181.4%.

关 键 词：晶化过程 磁性能 巨磁阻抗效应 

分 类 号：TG139.8[一般工业技术—材料科学与工程]