Synthesis and Characterization of Nickel-Iron-Silicon Nitride Nanocomposite

Abstract:

Article Preview

Nickel-iron-silicon nitride nanocomposite thin films were prepared by electrodeposition technique. The deposition was performed at current density of 11.5 A dm-2. Nano-size silicon nitride was mixed in the electrolyte bath as dispersed phase. The effects of silicon nitride nanoparticulates in the nickel-iron nanocomposite thin films were investigated in relation to the amount of silicon nitride in the plating bath. X-ray diffraction (XRD) analysis showed that the deposited nickel iron film has face-centered cubic structure (FCC). However, a mixture of body-centered cubic (BCC) and face-centered cubic (FCC) phases were observed for nickel iron-silicon nitride nanocomposite films. The crystallite size of Ni-Fe nanocomposite coating decreased with increasing amount of silicon nitride in the film. From elemental mapping procedure, Si3N4 nanopaticles were uniformly distributed in the Ni-Fe film. The presence of silicon nitride increased the hardness of the film. The microhardness of the nickel-iron nanocomposite increased from 495 HV for nickel-iron film to 846 HV for nickel-iron nanocomposite film with 2 at. % Si. The coercivity of Ni-Fe nanaocomposite films increases with decreasing crystallite size.

Info:

Periodical:

Advanced Materials Research (Volumes 97-101)

Edited by:

Zhengyi Jiang and Chunliang Zhang

Pages:

1360-1363

DOI:

10.4028/www.scientific.net/AMR.97-101.1360

Citation:

Y. Marita and I. I. Yaacob, "Synthesis and Characterization of Nickel-Iron-Silicon Nitride Nanocomposite ", Advanced Materials Research, Vols. 97-101, pp. 1360-1363, 2010

Online since:

March 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.