Publication

Abstract : The majority of metals, when exposed to the atmosphere, react with their surroundings to produce stable metallic chemical compounds in the form of oxides, carbides, and sulphides. Even though technological developments have occurred in various fields, such as corrosion prevention, more than 3.6% of the global gross domestic product (GDP) is affected and thus wasted. Nano-coating technologies are showing positive signs in corrosion protection due to their simplicity of maintenance, less expensive, and applicability to metallic substrates. It has been widely used to protect metallic compounds in automotive, aerospace, food, and biomedical metallic implants. Rather than micron-scale sizes, ceramic material coatings at nanoscale levels are gaining popularity through dense, uniform, and robust thin metal oxide coatings acting as effective corrosion barriers. Additionally, these coatings improve metallic substrates' hardness, wear resistance, and thermal properties. This review article primarily focuses on the characteristics of nano-sized ceramic material coatings over the metallic substrate with particles of Al2O3, Ta2O5, ZrO2, TiO2, and Nb2O5. A review of the properties of nano-sized ceramic material coatings, dispersion mechanisms, different coating technologies, applications, benefits, and challenges is also addressed.