Research Into Microstructure And Property Of CF/Cu(C)-Cu Composite

In this paper, the volume density, hardness, bend strength and electrical conductivity of CF/Cu(C)-Cu composites have been tested. The results show that, after graphite is coated by copper, the electrical conductivity, bend strength and volume density of Cu(C)-Cu composites is remarkably increased. With the increase of copper coated graphite, the static characteristics are reduced. By the addition of copper coated carbon fiber, the bend strength and hardness of CF/Cu(C)-Cu composites increased, the volume density and electrical conductivity of the composite have no apparent change.We also studied the dynamic characteristics of CF/Cu(C)-Cu composites, The results show that, by the method of graphite is coated with copper, the coefficient of friction and the wear rates remarkably decreased. With the increase of the copper coated carbon fiber content, The wear rates of CF/Cu(C)-Cu composites is notably decreased, while the coefficient of friction is increased. With the increase of electric current density, the wear rate of CF/Cu(C)-Cu composites is increased.