Carbon fiber reinforced carbon composites (CFRC) have a variety of roles, mainly including lightweight, high strength, high temperature resistance and corrosion resistance, which make them widely used in many fields.
First, lightweight is one of the main advantages of carbon fiber reinforced carbon composites. Its density is only 1/4 to 1/5 of steel and about 1/2 of aluminum, which enables products using this material to significantly reduce weight. Lightweight not only reduces energy consumption during transportation, but also improves the energy efficiency ratio of products, thereby reducing carbon emissions.
Second, high strength is also an important characteristic of carbon fiber reinforced carbon composites. Its tensile strength and elastic modulus are higher than those of general carbon materials, and fiber orientation significantly affects the strength of the material. When subjected to force, its stress-strain curve shows a "pseudoplastic effect", that is, it is linear in the initial stage of load application, and then becomes a bilinear relationship. After unloading and reloading, the curve is still linear and can reach the original load level.
In addition, high temperature resistance and corrosion resistance are also important characteristics of carbon fiber reinforced carbon composites. It has excellent heat ablation resistance and can maintain structural integrity and strength at high temperatures. It can still retain room temperature strength at 2200℃, and has high fracture toughness, fatigue resistance and creep resistance. In corrosive environments such as acid, alkali, salt spray and other conditions, carbon fiber reinforced carbon composites show excellent corrosion resistance and are suitable for scenarios such as marine engineering and chemical storage tanks.
In terms of application fields, carbon fiber reinforced carbon composites are widely used in multiple industries. In automobile manufacturing, it is used for body structures and chassis components to improve fuel efficiency and reduce operating costs. In the aerospace field, it is used for aircraft structural parts and engine blades to improve flight performance and reduce fuel consumption. In the wind power industry, it is used to manufacture wind turbine blades to improve power generation efficiency and reduce operating costs. In the construction industry, it is used to strengthen and repair concrete structures to improve the bearing capacity and durability of buildings. In energy storage devices, it is used for battery housings and frames to reduce weight and improve structural stability.