| Properties of short cut carbon fiber materials |
| carbon carbon composite material |
Low density carbon carbon composite material, mainly refers to the short cut carbon fiber material from the structure.
Low density of short carbon fiber, carbon carbon composite materials, has high porosity, low density, excellent resistance to high temperature and good structure stability, which is widely used for pyrolysis furnace atmosphere and general-purpose heat source fuel tank insulation materials.
By using this material as the reinforcing phase, a new type of super light ablation thermal protection the composite material can be widely used in the field of aerospace vehicle thermal protection.
Carbon bonded carbon fiber composite was prepared by aqueous slurry of press forming, drying, curing and carbonization process, which is a is composed of pyrolytic carbon bonded with each other independent of short cut fiber high porosity of carbon / carbon composites.
Material surface and internal fiber distribution is uniform, there is no aggregation, into a beam, delamination and other defects, carbon fiber in the high temperature treatment to maintain its original long straight structure characteristics. The compressive properties of short carbon fiber reinforced matrix materials are anisotropic.
Internal material in addition to carbon fiber and other areas are carbon fiber divided into a large number of interconnected pore structure, a large number of open pores due to the introduction of material within the air barrier so as to obtain the excellent heat insulating performance. However, short cut carbon fiber materials in the disordered arrangement also caused materials are prone to uneven phenomenon, the effect of materials on overall performance.
Carbon carbon composite material with low density, light weight, high strength, for aerospace and other materials on the weight of a strict.The area of demand is a very ideal lightweight material. Corrosion resistance, high temperature resistance, anti fatigue, anti radiation, conductive performance is excellent, also make carbon fiber materials in aerospace and other extreme environments have a wide range of applications. However, as a high temperature thermal insulation materials, in addition to the above characteristics, the most important is to require its low thermal conductivity characteristics. |
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