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AuthorRadwan, A. Bahgat
AuthorShakoor, R.A.
Available date2022-10-05T07:23:06Z
Publication Date2020
Publication NameCeramics International
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.ceramint.2019.12.261
URIhttp://hdl.handle.net/10576/34838
AbstractNi–B nanocomposite coatings containing various concentration aluminum nitride (AlN) nanoparticles (NPs) were developed through a scalable and conventional electrodeposition process. The influence of addition of AlN nanoparticles (0.6 and 1.2 g L−1) on the morphological, mechanical and corrosion protection efficiency of Ni–B nanocomposite coatings was explored using SEM, XPS, XRD, AFM and electrochemical techniques. The incorporation of AlN nanospecies into the Ni–B matrix coating decreased the porosity of the cauliflower-like structure and improved the mechanical properties including hardness and wear. The mechanism of electrochemical co-deposition was proposed. The potentiodynamic analysis exhibited that the protection efficiency (PE%) of Ni–B coating is ~20%, which increased to ~53% and ~73% by addition of AlN nanoparticles of 0.6 and 1.2 g L−1, respectively. The corrosion resistance could be credited to the presence of inactive and insulating AlN nanoparticles that filled the existing defects in Ni–B matrix and subsequently decreased the active area exposed to the corrosive electrolyte (3.5 wt.% NaCl).
SponsorThis publication was made possible by NPRP Grant NPRP-9-080-2-039 from Qatar National Research Fund (a member of the Qatar Foundation). Statements made herein are solely the responsibility of the authors.
Languageen
PublisherElsevier Ltd
SubjectCoating
Corrosion
Electrodeposition
Nanocomposite
Nanoparticles
TitleAluminum nitride (AlN) reinforced electrodeposited Ni-B nanocomposite coatings
TypeArticle
Pagination9863-9871
Issue Number7
Volume Number46
dc.accessType Abstract Only


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