Abstract
In this study, the effect of addition of a noble metal (Pd) to the Ni–B nano-coating is studied. The Ni–B and Ni–B–Pd coatings are synthesized from aqueous electrolytes using direct current. The Ni–B coating is found to be dense, smooth, and shows a morphology consisting of clusters of grains. On the other hand, the Ni–B–Pd coating is found to be porous, highly rough and shows a stacked crystal type morphology. The addition of Pd has significantly improved the crystalline structure of the Ni–B coating, which in turn improved its thermodynamic stability. In spite of larger grain size, higher roughness and a defect structure, the Ni–B–Pd coating is found to exhibit approximately 40% higher hardness and 70% higher elastic modulus than that of the Ni–B coating. Also, it has been observed to possess almost three times better corrosion protection property than that of the Ni–B coating.
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Acknowledgements
Authors are thankful to Qatar University, Doha, Qatar for funding and supporting the execution of this research.
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USW performed all the experimental work, collected and analyzed the data, and wrote the first draft of the manuscript. RN commented on the manuscript and approved the final version of the manuscript. AMSH, AKP and RN revised the manuscript and approved the final version of the manuscript. RAA, MSSM and RB conceptualized and designed the work.
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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Waware, U.S., Nazir, R., Hamouda, A.M.S. et al. Effect of addition of Pd on electrodeposited Ni–B coatings. Eur. Phys. J. Plus 137, 744 (2022). https://doi.org/10.1140/epjp/s13360-022-02979-y
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DOI: https://doi.org/10.1140/epjp/s13360-022-02979-y