Oxide ceramic coating

Oxide ceramic coating refers to the general term of heat-resistant inorganic protective layer or surface facial mask coated on metal surface. It can change the appearance, structure, and chemical composition of the outer surface of metal substrates, endowing them with new properties. There are many types of coatings; According to their composition, they can be divided into silicate coatings, oxide coatings, non oxide coatings, and composite ceramic coatings. It can be divided into fusion coating, spray coating, vapor deposition diffusion coating, low-temperature baking coating, electrochemical process coating, sol gel coating and in-situ reaction coating. According to its performance and application, it can be divided into temperature control coatings (including temperature control, insulation, infrared radiation coatings, etc.). ）Heat resistant coatings (including high-temperature oxidation resistance, corrosion resistance, heat treatment protection coatings, etc.), friction coatings (including wear-resistant and lubricating coatings), electrical performance coatings (including conductive and insulating coatings, etc.), special performance coatings (including electromagnetic wave absorption, atomic radiation protection coatings, etc.), and process performance coatings, etc.

Application of oxide ceramic coating

Aerospace Industry: Gearbox Transmission Device for Space Shuttle Fuselage Skin Engine Turbine Blades Combustion Chamber Wall

Power electronics industry: increasing dielectric constant

Automotive industry: In order to reduce weight and develop a new generation of automotive engines, European and Japanese car manufacturers have adopted the deposition of Ni SiC composite coatings on alloys, which can greatly improve thin film resistance, lubrication performance, and high-temperature oxidation resistance. Spraying zirconia ceramic powder on the combustion chamber wall of an internal combustion engine can increase operating temperature, save fuel, and simplify the structure of the engine.

Application in cutting tools: high hardness, strong heat resistance and adhesion, high chemical stability, good cutting toughness, and excellent cutting performance. For single-layer, double-layer, and three-layer cutting tools, the service life of ceramic coated cutting tools is 1-2 times that of the original cutting tools, and the service life of multi-layer cutting tools is 0.5-1 times that of ceramic coated cutting tools.

Metallurgy and Machinery Industry: The smelting, hot processing, and heat treatment of metals should be carried out at high temperatures to prevent high-temperature oxidation, nitriding, and oxygen permeation of metals. Heat treatment protective coatings are usually applied to metal surfaces.

Biomedical applications: improving the biocompatibility between the human body and metals.

Petrochemical industry: anti-corrosion

Ceramic and glass production: increasing strength and lifespan

Food packaging: heat-resistant, high barrier, transparent