Carbon fiber is a new material with carbon content higher than 90% and excellent performance. Its axial strength and modulus are high, its thermal expansion coefficient is small, its density is low, and it is high temperature resistant and conductive. It can not only serve as a load bearing structure, but also play a role as functional material. It is generally not used alone, as reinforced material and resin matrix combined to make composite material. This article tells you about the types of carbon fiber reinforced composites.
1. Carbon fiber reinforced ceramic matrix composites. Ceramic is a common material in life. It has the characteristics of corrosion resistance, friction resistance and high temperature resistance, but it is sensitive to fine defects, such as cracks, pores, inclusions and so on. The use of carbon fiber materials to enhance ceramics can obviously improve the toughness and prevent the propagation and diffusion of cracks.
2. Carbon / carbon composites. It consists of various types of carbon, such as carbon fiber, resin carbon, carbon deposition, entirely artificial designed and manufactured, besides having high strength, dimensional stability, antioxidant and other advantages, also has high fracture toughness and pseudoplastic, especially does not melt in the high temperature environment does not burn it, or metal it cannot be compared with.
3. Carbon fiber reinforced metal matrix composites. The metal matrix uses more magnesium, aluminum, titanium and their alloys. At present, the preparation technology of aluminum and magnesium composites is more mature, and the manufacture of other metal composite materials needs further study.
4. Carbon fiber reinforced resin matrix composites. It is the most widely used carbon fiber composite and is one of the most advanced composite materials at present. There are various kinds of resins, including epoxy resin, phenolic resin, polyethylene, polytetrafluoroethylene and so on. The epoxy resin is the most popular.
Carbon fiber reinforced polymer (CFRP) is widely used in many fields, including aerospace, military safety, automobile manufacturing, rail high-speed rail, medical devices, sporting goods and machinery production.
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