Silicon carbide (SiC) ceramic honeycomb not only has excellent room temperature mechanical properties, such as high bending strength, excellent oxidation resistance, good corrosion resistance, high wear resistance, and low friction coefficient, but also has the best high-temperature mechanical properties (strength, creep resistance, etc.) among known ceramic materials. Materials sintered by hot pressing, pressureless sintering, and hot isostatic pressing can withstand the high temperature up to 1600 ℃, which is the best in all ceramic materials. The oxidation resistance is also the best among all non oxide ceramics. The disadvantage of silicon carbide (sic) honeycomb ceramics is their low fracture toughness, which means they are brittle. Therefore, in recent years, composite ceramics based on silicon carbide (SiC) honeycomb ceramics, mixed with fiber (or whisker) reinforcement, or strengthened by heterogeneous particle and gradient functional materials, have emerged, improving the toughness and strength. Silicon carbide (sic) honeycomb ceramics have been widely used in industrial fields such as petroleum, chemistry, microelectronics, automotive, aerospace, aviation, paper-making, laser, mining, and atomic energy.
Silicon carbide honeycomb ceramics are a new type of ceramic product developed in the past year with a structure resembling a honeycomb shape. From its earliest use in small car exhaust purification to its widespread application in industries such as chemistry, power, metallurgy, petroleum, electronics, machinery, etc. today, It is becoming increasingly widespread and has considerable developing prospects.
