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Erschienen in:

2019 | OriginalPaper | Buchkapitel

Corrosion and Magnetic Characterization of Electroplated NiFe and NiFeW Soft Magnetic Thin Films for MEMS Applications

verfasst von : S. Venkateshwaran, E. Selvakumar, P. Senthamil selvan, M. Selvambikai, R. Kannan, A. S. Pradeep

Erschienen in: Advances in Materials and Metallurgy

Verlag: Springer Singapore

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Abstract

Electroplating of nanocrystalline NiFe and NiFeW thin films were successfully carried out on the copper substrate from ammonium citrate bath at a current density of 1 mA/dm² and controlled pH of 7 with constant bath temperature. The magnetic and corrosion properties were studied using VSM and electrochemical techniques. The results of vibrating sample magnetometer for NiFeW nanocrystalline thin films reveal its soft magnetic properties such as coercivity and saturation magnetization. From the electrochemical studies, corrosion resistance and corrosion inhibition efficiency were calculated. The electrochemical studies of all the coated films reveal that the NiFeW thin film exhibits the enhanced corrosion resistance as compared with NiFe thin film which in turn enhances the soft magnetic nature of NiFeW thin films. Thus, the electroplated NiFeW thin films can be used for Microelectromechanical System (MEMS) and Nanoelectromechanical System (NEMS) applications due to their excellent magnetic- and corrosion-resistant behaviour.

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Titel: Corrosion and Magnetic Characterization of Electroplated NiFe and NiFeW Soft Magnetic Thin Films for MEMS Applications
verfasst von: S. Venkateshwaran
E. Selvakumar
P. Senthamil selvan
M. Selvambikai
R. Kannan
A. S. Pradeep
Verlag: Springer Singapore
Buch: Advances in Materials and Metallurgy
Print ISBN: 978-981-13-1779-8

Electronic ISBN: 978-981-13-1780-4

Copyright-Jahr: 2019
DOI: https://doi.org/10.1007/978-981-13-1780-4_43

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