Paper Title:
Studies on Ni-Mo-P Coatings by Electroless Deposition
  Abstract

This paper describes the performance of Ni-P and Ni-Mo-P alloy coatings deposited by electroless plating on the aluminum alloy 5052 to evaluate the corrosion resistance, thermal stability and electro-conductivity of coating assemblies. Corrosion behaviors of the obtained deposits in a 0.5M H2SO4 environment were investigated. The crystalline state and morphologies of Ni-P and Ni- Mo-P alloys were examined by field emission scanning electron microscopy (FE-SEM). The experimental results indicate that the Ni-Mo-P coating operated at 70°C and pH 9.0 has a nanocrystalline structure and its corrosion resistance in a 0.5M H2SO4 environment can be enhanced by the co-deposition of Mo as compared to Ni-P films. It has also been found that the Ni-Mo-P ternary alloys reveal good thermal stability after annealing at 400°C. Based on the excellent performance of Ni-Mo-P ternary alloys, these alloys have a potential to be applied to precision mould, optical parts mould, and surface metallization of substrates.

  Info
Periodical
Key Engineering Materials (Volumes 364-366)
Edited by
Guo Fan JIN, Wing Bun LEE, Chi Fai CHEUNG and Suet TO
Pages
333-339
DOI
10.4028/www.scientific.net/KEM.364-366.333
Citation
Y. H. Chou, C. Y. Bai, M. D. Ger, S. J. Lee, C. Y. Lee, C. L. Chao, "Studies on Ni-Mo-P Coatings by Electroless Deposition", Key Engineering Materials, Vols. 364-366, pp. 333-339, 2008
Online since
December 2007
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Price
$32.00
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