Ceramic coating preparation technology 3
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Sol gel method is a method of preparing coatings by chemical solution, which can control the composition, molding and microstructure of materials. The cermet prepared by this method has the advantages of simple equipment, controllable material micro and macro structure, etc. Adding ceramic aggregate to the sol and combining with heat-resistant adhesive to prepare ceramic coating can reduce the volume fraction of solvent and reduce the cracking tendency of the film after gel drying and curing. The hardness, wear resistance, corrosion resistance and high-temperature oxidation resistance of the new ceramic coating prepared by the sol gel method have been mostly confirmed by researchers.
