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外镀铜层玻璃包裹丝的巨磁阻抗效应

, PP. 115-120

Keywords: 巨磁阻抗效应,化学镀,趋肤效应,软磁特性

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Abstract:

首先利用高频感应加热熔融拉丝法制备了Fe73.0Cu1.0Nb2.0Si13.5B9.0玻璃包裹非晶丝;然后在氮气保护下480~650℃之间退火0.5h;最后利用化学镀方法在570℃退火的玻璃包裹丝上沉积了一层铜,构成复合结构丝.利用扫描电镜测量了材料的几何尺寸,研究了玻璃包裹丝退火前后及复合结构丝的巨磁阻抗效应.结果表明,材料的软磁特性改善提高了材料的磁阻抗比,铜层与磁性层之间的电磁相互作用也影响磁阻抗比.

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