Nanocomposite Coatings for Anti-Corrosion Properties of Metallic Substrates

Abstract

Nanocomposites are high-performance materials with exceptional characteristics that possess properties that their individual constituents, by themselves, cannot provide. They have useful applications in many fields, ranging from membrane processes to fuel cells, biomedical devices, and anti-corrosion protection. Well-tailored nanocomposites are promising materials for anti-corrosion coatings on metals and alloys, exhibiting simple barrier protection or even smart auto-responsive and self-healing functionalities. Nanocomposite coatings can be prepared by using a large variety of matrices and reinforcement materials, often acting in synergy. In this context, recent advances in the preparation and characterization of corrosion-resistant nanocomposite coatings based on metallic, polymeric, and ceramic matrices, as well as the incorporation of various reinforcement materials, are reviewed. The review presents the most important materials used as matrices for nanocomposites (metals, polymers, and ceramics), the most popular fillers (nanoparticles, nanotubes, nanowires, nanorods, nanoplatelets, nanosheets, nanofilms, or nanocapsules), and their combinations. Some of the most important characteristics and applications of nanocomposite coatings, as well as the challenges for future research, are briefly discussed.

Corrosion and Wear Behavior of Additively Manufactured Metallic Parts in Biomedical Applications

“…Another study highlights the effectiveness of hybrid anticorrosive bioactive PEO coatings for biomedical products made from Mg and its alloys, assessing their corrosion-protection level using various methods [78]. Additionally, nanocomposite coatings are being developed with enhanced corrosion and wear resistance, as well as superior mechanical and tribological properties [79]. These advancements in multifunctional bioactive coatings hold promise for improving the performance and longevity of metallic implants, including bone implants.…”

Study on the Effect of Additives on the Performance of Cement-Based Composite Anti-Corrosion Coatings for Steel Bars in Prefabricated Construction

“…Second is direct protection, which can be achieved by modifying carbon steel through the addition of alloy elements to enhance its inherent corrosion resistance [11,12]. Alternatively, a protective anti-corrosion coating can be applied to the surface of the steel bar, effectively isolating the carbon steel from corrosive media, thereby decelerating the electrochemical corrosion rate and generating a shielding effect [13,14]. Anti-corrosion coatings have been widely used in various construction fields due to their excellent corrosion resistance, easy application, and environmental friendliness.…”

Electrochemical Impedance Spectroscopy Analysis of Organic Epoxy Coatings Reinforced with Nano Clay

“…Nanofillers of different natures—both organic and inorganic—have been taken into account to allow the realisation of coatings with better barrier properties, covering Si [ 5 ], SiO 2 [ 6 ], Al [ 7 ], Al 2 O 3 [ 8 ], TiO 2 [ 9 ], Zn [ 7 ], ZnO [ 10 ], ZrO 2 [ 11 ], Fe 2 O 3 [ 12 ], Carbon nanotubes [ 13 ], Graphene, and Graphene Oxide [ 14 ]. Clay nanoparticles [ 15 , 16 , 17 , 18 ] are an interesting alternative solution due to their low cost and easy availability [ 15 , 19 ].…”