FeCo基合金非晶晶化及介观结构  

The Study of FeCo-based Amorphous Alloy’s Crystallization and Microstructure

作　　者：杨晓红[1] 施方也[2] 满其奎[2] 方允樟[2] 孙怀君[2] 郑金菊[2] 

机构地区：[1]金华职业技术学院,金华321007 [2]浙江师范大学数理与信息工程学院,金华321004

出　　处：《复旦学报（自然科学版）》2008年第4期515-519,共5页Journal of Fudan University：Natural Science

基　　金：浙江省科技计划重点资助项目(2006C21109)

摘　　要：用等温退火方法对FeCo基合金薄带进行晶化处理,测量发现在540℃温度退火下巨磁阻抗效应最大,其值为1571.52%.在此基础上用原子力显微镜观测了不同温度退火的FeCo基合金薄带的断口形貌,分析了退火温度对FeCo基合金介观结构的影响,结果表明随着样品退火温度增加,晶粒尺寸逐渐长大,在540℃温度退火时晶体趋于完整,具有最好的软磁性.With crystallization treatment to FeCo-based alloy thin belts by the way of isothermal annealing, it is discovered that the GMI is 1 571.52% at the temperature of 540 ℃, the greatest ratio. The cross section of the material was observed with an atomic force microscope by annealing at different temperatures, and the effect of the temperature on FeCo- based microstructure was analysed. It is shown that the crystallite dimension is enlarging with the increasing annealing temperature. The crystallite is tending to be perfect at 540 ℃ and has the best soft magnetism.

关 键 词：FeCo基晶带 介观结构 晶化 退火温度 

分 类 号：TG132.271[一般工业技术—材料科学与工程]