Home    Company News    Common high-temperature resistant coating materials: ceramic material

Common high-temperature resistant coating materials: ceramic material

Hits: 20 img

Aluminum oxide (Al ₂ O3): It has high melting point (about 2072 ℃), high hardness, good chemical stability, and excellent insulation properties. The protective coating commonly used for various high-temperature industrial equipment, such as coating the inner lining surface of some high-temperature furnaces with alumina coating, can effectively resist high-temperature erosion and also play a role in insulation to a certain extent. The use of alumina coating on the inner wall of high-temperature drying equipment in the textile industry can enhance the equipment's resistance to high temperatures and extend its service life.
Zirconia (ZrO ₂) has a melting point of around 2715 ℃, a low coefficient of thermal expansion, and excellent thermal insulation and chemical stability. Zirconia coating is widely used in thermal barrier coatings for aircraft engines. By coating the surface of high-temperature components such as turbine blades with zirconia coating, it can effectively block the transmission of high-temperature gas to the blade substrate, reduce the operating temperature of the blades, and improve the efficiency of the engine and the reliability of the components. Meanwhile, zirconia coating is often applied to the surface of ceramic cutting tools to enhance their wear resistance in high-temperature cutting environments.
Silicon carbide (SiC): high hardness, high temperature resistance, good chemical stability, and good thermal conductivity. Commonly used in high-temperature wear-resistant and corrosion-resistant environments, such as coating the surface of continuous casting crystallizers in the steel metallurgy industry with silicon carbide coating, which can resist the high-temperature erosion and wear of molten steel, protect the crystallizers, and improve their service life; The use of silicon carbide coating on the inner wall of chemical reaction vessels can resist high temperatures and corrosion from chemical reaction media.
Metallic materials
Nickel based alloy: Based on nickel, with the addition of various alloying elements such as chromium, molybdenum, tungsten, etc., it has excellent high-temperature strength, oxidation resistance, and corrosion resistance. The coating commonly used for high-temperature components of aerospace engines, such as combustion chambers, turbine disks, etc., enables them to work stably in high temperature, high pressure, and complex gas environments, ensuring the performance and reliability of the engine. Nickel based alloy coatings can also provide good protection on high-temperature cracking equipment in the petrochemical industry, preventing equipment damage due to high-temperature corrosion.
Cobalt based alloys: containing elements such as cobalt, chromium, tungsten, etc., they have excellent high-temperature resistance, can maintain high hardness and wear resistance at high temperatures, and have good resistance to thermal corrosion. It is widely used in components such as blades and high-temperature valves of gas turbines, which can adapt to the scouring and hot corrosion environment of high-temperature gas, extend the service life of these components, and ensure the efficient and stable operation of gas turbines.
Metal ceramic materials
WC/Co (tungsten carbide/cobalt): combines the high hardness, high temperature resistance, and wear resistance of tungsten carbide with the good toughness and adhesion of cobalt. The coating made of this metal ceramic material is widely used in the mechanical processing industry, such as coating WC/Co coating on hard alloy cutting tools. When cutting high-temperature metal materials at high speed, the coating can effectively improve the wear resistance and high temperature resistance of the tool, reduce tool wear, and improve machining accuracy and efficiency. The coating is also used on the surface of drill bits in oil extraction to enhance their drilling ability in high-temperature and high hardness rock environments.
TiC/Al ₂ O3 (titanium carbide/aluminum oxide): It has the characteristics of high hardness, high melting point, good chemical stability, and high temperature wear resistance. The mold coating commonly used in the manufacturing industry of ceramics, glass, etc. can protect the mold from high-temperature wear and corrosion during the molding of high-temperature and high hardness material products, prolong the service life of the mold, and ensure the molding quality of the product.
Organic silicon material
Organic silicon resin: It can be used for a long time in the temperature range of 200 ℃ -300 ℃, and has good heat resistance, weather resistance, electrical insulation, and flexibility. Commonly used in the electronic and electrical industry, such as coating on the heat sink of some electronic components, it can withstand the local high temperature generated during the operation of the components, and help dissipate heat, ensuring the normal operation of the components; It can also be used for the outer wall of high-temperature pipelines outdoors, providing protection and decoration, resisting external factors such as sunlight exposure and wind and rain erosion, while withstanding a certain level of pipeline high temperature.
Polysiloxane: It has good high temperature resistance and oxidation resistance, and is used in some industrial equipment or daily necessities that do not require particularly high temperature. For example, in some non stick coatings for household use, some are made of polysiloxane materials, which can withstand high temperatures on the surface of the cookware during cooking and have non stick properties, making it easy to use and clean.

Room termperature curing polysilazane, pls check IOTA 9150, IOTA 9150K
High termperature curing polysilazane, pls check IOTA 9108IOTA 9118.  

Online QQ Service, Click here

QQ Service

What's App