Carbon carbon composite materials for stove racks

Carbon carbon composite materials have the advantages of low density (<2.0g/cm3), high strength, high specific modulus, high thermal conductivity, low expansion coefficient, good friction properties, good thermal shock resistance and high dimensional stability. They are Today, there are a few candidate materials that can be used above 1650°C, with the highest theoretical temperature being as high as 2600°C. Therefore, they are considered to be one of the most promising high-temperature materials.

Advantage

High strength, high specific modulus, high thermal conductivity

Although carbon/carbon composite materials have many excellent high-temperature properties, they undergo oxidation reactions in an aerobic environment at temperatures above 400°C, resulting in a sharp decline in material performance. Therefore, the application of carbon/carbon composite materials in high-temperature aerobic environments must have oxidation protection measures. The oxidation protection of carbon/carbon composite materials is mainly through the following two ways. That is, at lower temperatures, matrix modification and passivation of surface active points can be used to protect carbon/carbon composite materials; as the temperature increases, A coating method must be used to isolate the direct contact between the carbon/carbon composite material and oxygen to achieve the purpose of oxidation protection. The most commonly used method is coating. With the continuous advancement of technology, there is more and more reliance on the ultra-high temperature performance of carbon/carbon composite materials. The only feasible oxidation protection solution under ultra-high temperature conditions can only be coating protection. .

Application

Due to its unique properties, carbon carbon composite materials are particularly suitable for high-temperature structural parts such as heating elements, fasteners, transmission parts, and support trays under vacuum and high-temperature conditions.

Tech Data (C-C composite materials)