Effects of annealing and pulse plating on soft magnetic properties of electroplated Fe-Ni films
Effects of annealing and pulse plating on soft magnetic properties of electroplated Fe-Ni films
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DOI：
10.1063/1.4944076
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发表时间：
2016-03
期刊：
影响因子：
1.6
通讯作者：
T. Yanai;K. Azuma;K. Eguchi;Yoshimasa Watanabe;T. Ohgai;M. Nakano;H. Fukunaga
中科院分区：
文献类型：
--
作者：
T. Yanai;K. Azuma;K. Eguchi;Yoshimasa Watanabe;T. Ohgai;M. Nakano;H. Fukunaga
我们已经报道了在柠檬酸基镀液中制备的Fe-Ni薄膜显示出良好的软磁性能。本文研究了薄膜中Fe-Ni晶相的晶粒尺寸对磁性能的影响，并采用了退火和脉冲电镀的方法来改变晶粒尺寸。在600 °C下退火的Fe-Ni薄膜的矫顽力显示出较大的值，并且观察到晶粒生长与矫顽力之间的良好相关性。与直流电镀法相比，脉冲电镀法能够减小Fe-Ni薄膜的晶粒尺寸，实现了Fe-Ni薄膜的表面光滑、低介电常数。从这些结果中，我们证实了晶粒尺寸减小的重要性，并得出结论，脉冲电镀是一种有效的方法，以提高我们以前报道的Fe-Ni薄膜的良好的软磁性能。
We have already reported that Fe-Ni films prepared in citric-acid-based plating baths show good soft magnetic properties. In this paper, we investigated the effect of the grain size of the Fe-Ni crystalline phase in the films on magnetic properties, and employed an annealing and a pulse plating method in order to vary the grain size. The coercivity of the annealed Fe-Ni films at 600 °C shows large value, and good correlation between the grain growth and the coercivity was observed. The pulse plating enables us to reduce the grain size of the as-plated Fe-Ni films compared with the DC plating method, and we realized smooth surface and low coercivity of the Fe-Ni films using the pulse plating method. From these results, we confirmed the importance of the reduction in the grain size, and concluded that a pulse plating is an effective method to improve the good soft magnetic properties for our previously-reported Fe-Ni films.