What are the disadvantages of graphite brake pads and the advantages of graphite brake pads

What are the disadvantages of graphite brake pads and the advantages of graphite brake pads
Graphite brake pad advantages Adding a certain amount of graphite powder to the brake pad can improve the safety performance of the brake. The friction material in brake pads is a multiphase composite material composed of fibers, fillers and resin adhesives. In the friction process, the metal phase, barium sulfate phase and carbon phase will form a friction layer in the tribochemical reactants and affect the friction performance, in which the carbon phase is mainly composed of graphite powder.
In a certain temperature range, graphite powder can improve the friction coefficient of braking. Because graphite powder is a commonly used lubricant in some friction materials, the debris generated by wear and tear during the friction process of the brake pad will gather on the surface of the friction material, forming a carbon phase friction layer, which is adhesive between the brake pad and the wheel.
In addition, there are ceramic brake pads are relatively hard, comfort, save the disc; Graphite brake pad soft, black and gray dirty, good comfort, save cost. Ceramic graphite and other new materials, good thermal conductivity, high heat resistance, low noise, and moderate price.