Journal Article Effect of an annealing on magnetic properties of Fe-Ni films electroplated in citric-acid-based plating baths

Yanai, Takeshi  ,  Koda, K.  ,  Eguchi, K.  ,  Morimura, T.  ,  Takashima, K.  ,  Nakano, M.  ,  Fukunaga, H.

8 ( 4 )  , p.047706 , 2018-04 , American Institute of Physics Publising LLC
We have already reported Fe-Ni films with good soft magnetic properties prepared by using an electroplating method. In the present study, we employed an annealing for further improvement in soft magnetic properties of the electroplated Fe-Ni films. The annealing reduces the coercivity of the films, and the reduction rate of the coercivity depended on the Cl- ion concentration in the bath. The Fe22Ni78 films prepared in the plating bath with high Cl- ion concentration showed large reduction rate of the coercivity, and we found that the annealing is more effective for high Cl- ion concentration bath since much lower coercivity value can be obtained compared with that for low Cl- ion concentration one.

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