Open Science Research Excellence
%0 Journal Article
%A Soroor Ghaziof and  Wei Gao
%D 2015 
%J  International Journal of Environmental and Ecological Engineering
%B World Academy of Science, Engineering and Technology
%I International Science Index 102, 2015
%T Production and Characterization of Sol-Enhanced Zn- Ni-Al2O3 Nanocomposite Coating
%U http://waset.org/publications/10001572
%V 102
%X Sol-enhanced Zn-Ni-Al2O3 nanocomposite coatings
were electroplated on mild steel by our newly developed solenhanced
electroplating method. In this method, transparent Al2O3 sol
was added into the acidic Zn-Ni bath to produced Zn-Ni-Al2O3nanocomposite
coatings. The chemical composition, microstructure and
mechanical properties of the composite and alloy coatings deposited
at two different agitation speed were investigated. The structure of all
coatings was single γ-Ni5Zn21 phase. The composite coatings possess
refined crystals with higher microhardness compared to Zn-Ni alloy
coatings. The wear resistance of Zn-Ni coatings was improved
significantly by incorporation of alumina nano particles into the
coatings. Higher agitation speed provided more uniform coatings
with smaller grain sized and slightly higher microhardness.
Considering composite coatings, high agitation speeds may facilitate
co-deposition of alumina in the coatings.
%P 720 - 724