低频脉冲磁场致Co60.15Fe4.35Si12.5B15非晶合金纳米晶化的GMI

辽宁石油化工大学学报 ›› 2008, Vol. 28 ›› Issue (3): 87-88.

低频脉冲磁场致Co60.15Fe4.35Si12.5B15非晶合金纳米晶化的GMI

金莹，郭红

辽宁石油化工大学理学院，辽宁抚顺 113001

收稿日期:2008-04-18 出版日期:2008-09-20 发布日期:2017-07-24
基金资助:
国家高技术研究发展计划项目（2002AA30260）。

Giant Magnetic Impedance Effect on Nano-Crystallization of Amorphous Alloy Co60.15Fe4.35Si12.5B15 Caused by Lower Frequency Pulse Magnetic Field

JIN Ying, GUO Hong

School of Sciences, Liaoning University of Petroleum & Chemical Technology, Fushun Liaoning 113001,P.R. China

Received:2008-04-18 Published:2008-09-20 Online:2017-07-24

摘要/Abstract

摘要： 采用低频脉冲磁场致Co60.15Fe4.35Si12.5B15非晶合金纳米晶化，晶化过程温升小于5 ℃，有效避免了材料变脆，获得了优于常规等温退火的纳米晶软磁性能。从实验中观察到较大的GMI效应，且最佳驱动电流频率为2 MHz，横向磁各向异性场为0.9 kA/m。

关键词: 非晶合金, 纳米晶化, 脉冲磁场

Abstract: Nano-crystallization of amorphous alloy Co60.15Fe4.35Si12.5B15 can be realized with the process of low-frequency pulsating magnetic field. In the process of crystallization, temperature rising is less than 5 ℃, which can prevent efficiently material from getting fragile and obtain the nano-crystallization soft magnetic properties superior to routine isothermal annealing. The larger GMI effect was observed in the experiment, and the best driving frequency is 2 MHz and the transverse anisotropy field is 0.9 kA/m.

Key words: Amorphous alloy, Nano-crystallization, Pulsating magnetic field

金莹，郭红. 低频脉冲磁场致Co60.15Fe4.35Si12.5B15非晶合金纳米晶化的GMI[J]. 辽宁石油化工大学学报, 2008, 28(3): 87-88.

JIN Ying, GUO Hong. Giant Magnetic Impedance Effect on Nano-Crystallization of Amorphous Alloy Co60.15Fe4.35Si12.5B15 Caused by Lower Frequency Pulse Magnetic Field[J]. Journal of Liaoning Petrochemical University, 2008, 28(3): 87-88.

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