A Review of Preparation and Characterization of Sol-Gel coating forCorrosion Mitigation

Abstract

Sol-gel technology has emerged as a powerful and versatile tool for synthesizing a wide range of materials such as catalyst, ceramics, coatings, composite, glasses, fibers.Many industries like Automotive, Biomedical , Communications, Construction and Electronics sectors benefit from the use of sol-gel chemistry due to its versatility in fabricating a wide range of materials with different properties. In the sol-gel process, a precursor solution (sol) is used, and the precursor molecules undergo controlled hydrolysis and polycondensation to become a solid substance (gel). This paper explores the application of the sol-gel synthesis method in coating technology for corrosion prevention. Corrosion presents a notable risk to infrastructure, machinery, and diverse industrial uses, resulting in considerable economic losses and safety hazards. Several methods exist for corrosion prevention using coatings such as chemical vapor deposition and physical vapor deposition but sol-gel stands out due to its low synthesis temperature ,cost-effectiveness, simplicity ,ability to incorporate and leverage corrosion inhibitors and adaptability to various substrates. Limitations exist in terms of process optimization, and long-term stability, ongoing research efforts are actively addressing these challenges to unlock its full potential. Additionally with our study of related journals we have found that these coatings can be further engineered to exhibit additional functionalities like hydrophobicity, conductivity, or biocompatibility, expanding their applicability across diverse industrial needs.