| CoFeBSiNb非晶合金带材纵向驱动巨磁阻抗效应研究 |
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| 引用本文： | 孙怀君,李莉,方允樟,杨晓红,斯剑霄,范晓珍,林根金.CoFeBSiNb非晶合金带材纵向驱动巨磁阻抗效应研究[J].浙江师范大学学报(自然科学版),2012,35(2):150-154. |
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| 作者姓名： | 孙怀君 李莉 方允樟 杨晓红 斯剑霄 范晓珍 林根金 |
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| 作者单位： | 1. 浙江师范大学数理与信息工程学院,浙江金华,321004
2. 金华职业技术学院农学院,浙江金华,321007 |
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| 基金项目： | 国家自然科学基金资助项目，浙江省自然科学基金资助项目 |
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| 摘 要： | 采用单辊快淬法制备了具有强非晶形成能力的Co63Fe4B22Si5,6Nb5非晶合金带材。利用HP4294A阻抗分析仪测量了经不同温度退火的Co基非晶合金带材在纵向驱动模式下的巨磁阻抗效应（GMI）．实验结果表明：材料经去应力退火后，其软磁性能得到了有效的改善，其中经580℃退火1h的Co基非晶薄带在475kHz电流驱动下的GMI比值可高达2400％，其灵敏度达114％／（A·m^-1）．
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| 关 键 词： | CoFeBSiNb 纵向驱动 巨磁阻抗效应 退火 软磁性能 |
The longitudinally driven giant magneto-impedance effect of CoFeBSiNb amorphous alloy ribbon |
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| SUN Huaijun
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LI Li
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FANG Yunzhang
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YANG Xiaohong
,
SI Jianxiao
,
FAN Xiaozheng
,
LING Genjin.The longitudinally driven giant magneto-impedance effect of CoFeBSiNb amorphous alloy ribbon[J].Journal of Zhejiang Normal University Natural Sciences,2012,35(2):150-154. |
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| Authors: | SUN Huaijun LI Li FANG Yunzhang YANG Xiaohong SI Jianxiao FAN Xiaozheng LING Genjin |
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| Institution: | SUN Huaijun1,LI Li1,FANG Yunzhang1,YANG Xiaohong2, SI Jianxiao1,FAN Xiaozheng1,LING Genjin1(1.College of Mathematics,Physics and Information Engineering,Zhejiang Normal University,Jinhua Zhejiang 321004,China;2.College of Agriculture,Jinhua Vocational and Technical College,Jinhua Zhejiang 321007,China) |
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| Abstract: | Co-rich,soft magnetic glassy alloy ribbons,with composition Co63Fe4B22.4Si5.6Nb5 having high GFA were prepared by using a single roller melt-spinning technique.The effect of annealing temperature on the longitudinally driven giant magnetoimpedance(GMI) of Co63Fe4B22.4Si5.6Nb5 ribbons was investigated extensively.The experimental results showed that annealing from 500 ℃ to 580 ℃ produced short-range order relaxation and consequently improved the sample′s soft magnetic properties.The maximum relative change of impedance measured for a drive current frequency of 475 kHz was about 2 400% with a maximum slope sensitivity of 114%/(A·m-1) at low field for annealing at 580 ℃ for 1 h. |
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| Keywords: | CoFeBSiNb longitudinally drive giant magneto-impedance effect annealing soft magnetic properties |
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