Will Low Temperature Environments Affect The Braking Performance Of Ceramic Brake Pads?
Among the many considerations in automotive braking systems, environmental temperature is an aspect that cannot be ignored. Especially in low-temperature environments whether the braking performance of ceramic brake pads is affected has become a focus of attention for many car owners and automotive professionals. Ceramic brake pads, their many excellent characteristics, have demonstrated reliable braking performance in conventional environments. They are mainly made by carefully blending ceramic fibers, binders, and various inorganicers, possessing good stability and durability. However, when faced with low-temperature environments, the situation becomes relatively complex. From the perspective of material properties low temperatures can change some of the physical properties of ceramic brake pads, thereby affecting their braking performance. In low-temperature conditions, such as in the cold winter the north, the temperature often drops to minus tens of degrees or even lower. The performance of the binder inside the brake pad is somewhat impacted. The original function the binder is to tightly bind the ceramic fibers and other fillers together to maintain the overall structure and performance of the brake pad. However, low temperatures may cause binder to become relatively brittle, reducing its binding effect, and weakening the internal cohesion of the brake pad. This makes it easier for the brake pad to shed powder increase wear during braking, thereby affecting the stable output of friction, and possibly extending the braking distance to some extent.
Meanwhile, the friction coefficient between the ceramic brake pads and the brake discs can also fluctuate in low-temperature environments Under normal conditions, the friction coefficient between the two is well-matched, ensuring stable and effective braking of the vehicle. However, in low temperatures, due to thermal expansion and contraction of materials, the surface microstructure of the brake pads and brake discs changes, leading to differences in their fit and contact state compared to normal. This can result in instability in the friction coefficient. For instance, during the first braking on a cold road after snowy or icy weather, drivers may notice that vehicle's braking response is not as sensitive as in warm weather. They might need to apply more force to achieve the expected deceleration, which is a direct of the friction coefficient being affected by low temperatures. However, it is worth noting that compared to some traditional brake pads, ceramic brake pads still have certain in low-temperature environments. Many ordinary semi-metallic brake pads are more prone to rusting and surface frosting in low temperatures, which can greatly interfere with normal braking function and significantly reduce braking effectiveness. On the other hand, due to their composition and manufacturing process, ceramic brake pads have better anti-corrosion and-frosting capabilities. Even in low temperatures, they can maintain relatively stable braking performance to a certain extent, reducing the risk of braking failure caused by external environmental. Moreover, a car's braking system is often an integrated whole. After a vehicle is started in a low-temperature environment, the friction between the discs and brake pads during driving generates some heat, gradually increasing their temperature and bringing them back to a more suitable working state. Therefore, although the initial stage of temperatures may have some impact on the braking effect of ceramic brake pads, as long as the vehicle starts normal driving and brakes multiple times, this impact will gradually weaken