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Development of nano structured Ni rich Ni-Fe-W-S films for micro electro mechanical system applications

R. KANNAN1,* , S. GANESAN2, V. BALASUBRAMANIAN3, M. RAJESWARI2

Affiliation

  1. Department of Physics, KSR College of Engineering, Tiruchengode-637215, Tamil Nadu, India
  2. Department of Physics, Government College of Technology, Coimbatore-641001, Tamil Nadu, India
  3. Department of Physics, Tamilnadu College of Engineering, Karumathampatti, Coimbatore- Tamil Nadu, India

Abstract

Nano crystalline Ni rich Ni-Fe-W-S alloy thin films were electrodeposited on copper substrate from different citrate bath at 50˚C.The structural, chemical composition, surface morphology and magnetic properties of the electro deposited Ni-Fe-W-S thin films were studied. The chemical compositions of the films were carried out by using Energy Dispersive X-ray spectroscopy (EDAX). The structural and morphology of the films were detected by using X-ray diffractometer (XRD) and Scanning Electron Microscope (SEM) respectively. The Mechanical properties of the films were analyzed by using Vickers Hardness Test (VHN).In this report; vibrating sample magnetometer (VSM) has been used as a tool to investigate the magnetic properties on the electrodeposited Ni-Fe-W-S films. The deposits of Ni-Fe-W-S thin films were found to be smooth, adherence to the substrate. All the electro deposited films exhibit FCC crystalline structure with crystalline size in the order of Nano scale. The study of Coercivity, Saturation magnetization and magnetic flux density of the films from Tri Sodium, Diamminoum and Tri Potassium citrate bath are also reported. Electro deposited Ni-Fe-W-S thin films from various citrate bath exhibit good soft magnetic properties and are suitable for various electronic devices including high density recording media, magnetic actuators, magnetic shielding, and high performance transformer cores..

Keywords

Vibrating sample magnetometer, Ni rich Ni-Fe-W-S films, Hardness and adherence.

Submitted at: Jan. 14, 2013
Accepted at: Jan. 22, 2014

Citation

R. KANNAN, S. GANESAN, V. BALASUBRAMANIAN, M. RAJESWARI, Development of nano structured Ni rich Ni-Fe-W-S films for micro electro mechanical system applications, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 1-2, pp. 156-161 (2014)