Sic high temperature ceramic (silicon carbide ceramic) has good high temperature resistance, thermal conductivity, high strength, high hardness, low density, small thermal expansion coefficient, good oxidation resistance, wear resistance and other properties, making it can withstand more than 1400 ℃ temperature. The SiC material used as the temperature measurement protection sheath, which has a series of advantages such as high temperature resistance, oxidation resistance, high strength, high hardness, anti-erosion, corrosion resistance and rapid temperature change performance, so as to ensure that the thermocouple is around 1400 ℃ and can be used stably for a long time under high temperature environment to meet the industrial production needs of metallurgy and coal chemical industry.
