Experimental Study on Friction Characteristics of a Fibre Reinforced Composite Brake Pad

A series of brake friction tests on a fibre reinforced composite brake pad and a HZ408 brake pad materials rubbing against a brake disc material were carried out on a friction and wear tester of MM-1000 type.During the test,the coefficient of friction,temperature increment and wear mass loss of both materials were measured.The worn surface morphologies were observed using a Confocal Laser Scanning Microscope(CLSM).The initial brake speed had a smaller influence on the friction coefficient of the fibre reinforced composite than it exerted the influence on that of the HZ408 brake pad.The fibre reinforced composite exhibited a larger averaged friction coefficient than the HZ408 brake pad did at a high speed.The wear mass loss of the fibre reinforced composite was found to be slightly larger than that of the HZ408 brake pad.At a low speed,the temperature increments of both pad materials were close to each other.At a high speed,the temperature increment of the fibre reinforced composite was found to be slightly larger than that of the HZ408 brake pad.