Electroplated Fe–Ni Films Prepared From Deep Eutectic Solvents

Author

Yanai, Takeshi ; Shiraishi, Kotaro ; Watanabe, Yoshihiro ; Nakano, M. ; Ohgai, Takeshi ; Suzuki, Kenji ; Fukunaga, Hirotoshi

Author_Institution

Grad. Sch. of Eng., Nagasaki Univ., Nagasaki, Japan

Volume

50

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

1

Lastpage

4

Abstract

Fe-Ni alloy films were prepared by electroplating in a plating bath containing a choline chloride and ethylene glycol-based deep eutectic solvent (DES). The Fe content of the electroplated films was found to vary from 0 at.% to 100 at.% and was dependent on the amount of Fe reagent in the plating bath. The composition of the electroplated films could be controlled easily by changing the composition of the bath. We observed bcc or fcc Fe-Ni crystalline phase in the electroplated films by X-ray diffraction and confirmed that magnetically soft Fe-Ni alloy films could be obtained from the DES-based bath. The current efficiency for the plating process was as high as >88% over a wide range of the Fe reagent concentrations. Therefore, we conclude that the DES is an attractive solvent for preparing the Fe-Ni alloy films.

Keywords

X-ray diffraction; electroplating; iron alloys; magnetic thin films; metallic thin films; nickel alloys; soft magnetic materials; FeNi; X-ray diffraction; bcc crystalline phase; choline chloride; electroplating; ethylene glycol-based deep eutectic solvent; fcc crystalline phase; magnetically soft alloy films; plating bath; Iron; Magnetic hysteresis; Magnetostriction; Saturation magnetization; Soft magnetic materials; Solvents; Deep eutectic solvent (DES); electroplating; permalloy; soft magnetic films;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2323572

Filename

6971299