High temperature corrosion resistant coating for ceramic materials
High temperature corrosion resistant ceramic materials are an important branch of ceramic materials. It is characterized by high temperature resistance, high strength, super hardness, wear resistance, corrosion resistance and other mechanical and mechanical properties, and can withstand harsh work that metal materials and polymer materials are incapable of environment.
The temperature resistance can reach the temperature of the flame, and it can withstand high-temperature flames for long-term grilling. It has good anti-corrosion and anti-oxidation performance, and high hardness, which can successfully solve the above high-temperature furnace metal corrosion problems. High-temperature corrosion-resistant ceramic material coating can withstand temperatures up to 2300°C, can withstand fire-resistant barbecues for a long time, and has a good anti-corrosion effect in fire. No harmful substances volatilize under normal temperature and high temperature, green and environmental protection, no pollution.
In a special high-temperature kiln, there is a strong acid-base liquid or gas corrosion, and the composite ceramic high-temperature anti-corrosion coating should be painted, and the temperature resistance can reach 1600 °C. The main components of paint pigments are made of yttrium-based rare earth micropowder, composite α-ceramic micropowder, silicon carbide, etc., which are finely processed under closed high temperature. The coating has high temperature resistance, and forms a dense ceramic glaze at high temperature. The hardness can reach 7H. The composite ceramic high-temperature anti-corrosion coating is smooth and self-cleaning, impact-resistant, and can resist acid and alkali corrosion for a long time. It has strong adhesion, waterproof and oil-proof, and also Resistant to corrosive immersion in organic solvents.
The melting point and hardness of ceramic materials are generally higher than those of metal materials, and they have good insulation and chemical stability (especially oxidation resistance), so they are widely used in many high-temperature technical fields.