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Carbon fiber reinforced polymer composites are widely used in foreign liquid rocket engines. Such as Germany's Astrium design, made with nozzle extension a water cooled thrust chamber test, as well as the Ariane rocket engine design for 5 level fire made the scale of thrust chamber extension nozzle; the 5 Ariane rocket upper stage engine engine and engine spray pipe Aestus HM-7 extension; engine nozzle extension; a an upper stage engine Snecma Venus motive nozzle extension development of French RS-72 company; USA Inc research expansion cycle liquid rocket upper stage engine RL10B-2 motivation extension nozzle Pratt & Whitney; the French company developed the Snecma expansion cycle LH2 / lox engine can be extended Vinci upper stage engine nozzle; USA Inc…
The inner surface of the nozzle made of carbon carbon composite material is relatively uniform and smooth. no pit, which is beneficial to improve the efficiency of the nozzle, is generally considered to be the best material for the throat lining at present. In spite of the carbon carbon composite material has good thermal insulation, anti erosion and good machinability, but its production process is complex, high cost, ablation resistance as tungsten copper infiltrated materials. In order to increase of the ablated material ablation resistant ability, in the carbon carbon composite material nozzle ablation surface is coated with a layer of erosion resistant coating. In the carbon carbon composite material is coated on the surface of the dense tungsten coating,…
Carbon carbon composite materials with the unique properties of structural materials and functional materials, is widely used in aerospace and other fields, carbon / carbon composite materials, there is only one element, that is, the carbon element, carbon / carbon composites have many advantages, such as low density, and the actual density of carbon and graphite materials, which is about 2g/cm3. The function not only to meet the as a thermal conductivity material with high temperature resistance, high thermal conductivity coefficient characteristics, and as a friction material has the advantages of abrasion resistance, ablation resistance and other characteristics, at the same time as the structural materials must have high mechanical properties, including high specific strength, high specific modulus, brittleness and…
