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Corrosion02:49

Corrosion

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The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...
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  11. Designing A Robust Ni-p/ceo2 Superhydrophobic Composite Coating For Synergistically Enhanced Corrosion Protection And Friction Reduction Performance

Designing a Robust Ni-P/CeO2 Superhydrophobic Composite Coating for Synergistically Enhanced Corrosion Protection and Friction Reduction Performance

Ying Xu1, Kai An1, Youqiang Wang1

  • 1School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China.

Langmuir : the ACS Journal of Surfaces and Colloids
|July 31, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

This study developed a robust superhydrophobic coating for copper, enhancing corrosion protection and reducing friction. The novel Ni-P/CeO2 composite coating offers superior mechanical stability and durability for practical applications.

Area of Science:

  • Materials Science
  • Surface Chemistry
  • Tribology

Background:

  • Superhydrophobic surfaces offer promising metal corrosion protection.
  • Existing superhydrophobic coatings lack mechanical stability and long-term corrosion resistance.
  • Developing robust superhydrophobic coatings is crucial for practical applications.

Purpose of the Study:

  • To design and fabricate a superhydrophobic composite coating with enhanced anticorrosion and friction-reducing properties.
  • To investigate the mechanical stability and corrosion resistance of the novel coating.
  • To evaluate the friction-reducing performance of the superhydrophobic coating.

Main Methods:

  • Fabrication of Ni-P/CeO2 superhydrophobic composite (SC) coating on copper via electrodeposition.
  • Characterization of superhydrophobicity using water contact angle measurements (up to 154°).

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  • Evaluation of mechanical stability, corrosion resistance (electrochemical tests), and friction coefficient (dry friction).

    • Main Results:

    • The Ni-P/CeO2 SC coating exhibited excellent superhydrophobicity.
    • The multilayer micro/nanostructure ensured excellent mechanical stability.
    • The coating demonstrated superior corrosion resistance and a low friction coefficient (0.11).

    Conclusions:

    • The developed Ni-P/CeO2 SC coating provides a novel strategy for robust superhydrophobic surfaces.
    • The coating exhibits excellent mechanical stability, corrosion protection, and friction reduction.
    • This work paves the way for new applications of superhydrophobic coatings in demanding environments.