C-C composite or carbon-carbon composite material ( CFC ) is carbon fiber and their fabric reinforced carbon matrix composite. It has the advantages of low density (<2.0g / cm3), high strength, high specific modulus, high thermal conductivity, low coefficient of expansion, good friction performance, good thermal shock resistance and high dimensional stability. It is one of the alternative materials in the applications above 1650 ℃, the highest theoretical temperature is up to 2600 ℃. Carbon carbon composite is considered one of the most promising high temperature materials.

Although carbon carbon composites have excellent high temperature performance, they are oxidized in aerobic environment at temperatures above 400 ° C, resulting in a sharp drop in material properties. Therefore, oxidative protective measures need to be taken in the application of carbon composites in high temperature aerobic environments.

Carbon carbon composite oxide protection mainly through the following two ways:

1. At lower temperatures, carbon composites can be protected by matrix modification and surface passivation.

2. With the increase in temperature, you must use the coating method to isolate carbon carbon composite materials and oxygen in direct contact to achieve the purpose of oxidation protection.

At present, coating method is the most widely used way. With the continuous progress of technology, we are more and more dependent on ultra-high temperature performance of CFC. In ultra-high temperature conditions, coated protection is the only viable way of oxidation protection.

For enquiry of our products, email us on sales@cmcarbon.com or learn more about our CFC products on http://www.cmcarbon.com/carbon-composite/

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