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For the first time, carbon ceramic brakes were unveiled […]
For the first time, carbon ceramic brakes were unveiled mysteriously at the 1999 Frankfurt International Automobile Exchange (IAA). The use of new high-tech materials has revolutionized traditional car brake pad technology: about 60% lighter carbon brakes than traditional gray cast iron brakes.
A distinctive feature of carbon ceramic brake system is that it is made of ceramic composite material. Carbon ceramic brakes themselves and both sides of the friction layer are made of carbon fiber reinforced silicon carbide material. The main matrix components are silicon carbide and industrial silicon. Carbon fiber enhances the strength of the material. The main matrix composition of silicon carbide determines the hardness of composite materials. The role of carbon fibers is to increase the mechanical strength of the material and to provide the material with the required fracture toughness for technical applications. The same ductile shear fracture behavior of ceramic composites provides protection against high heat load and mechanical load.
Elongation at break of carbon ceramic materials ranged from 0.1% to 0.3%. This is a very high value for ceramic materials. Because of these characteristics, carbon fiber-reinforced silicon carbide is the material of choice for high-performance brake braking systems: especially light weight, good hardness, high and high temperature stability, thermal shock resistance and ductile shear Cutting and breaking characteristics extend the service life of carbon ceramic brake pads and avoid all the problems caused by the load of traditional gray cast iron brake pads.
Lighter brakes mean weight reduction under the suspension. This allows the suspension system to react faster, thus improving overall vehicle handling. In addition, an ordinary brake disc tends to generate heat decline due to high heat under full braking, while a ceramic brake disc can effectively and steadily resist heat decline, and its heat-resistant effect is many times higher than ordinary brake discs.