Preparation of C/Cu Composite Powders by High-energy Ball Milling

摘要

Cu-4％C mixed-powder consisting of rough copper powder and graphite powder was separately mechanical alloyed by high energy ball milling.The phases and micrograph of these powders were determined by X-ray diffraction and scanning electron microscopy (SEM).The results show that increase of the lattice parameter of copper with milling times,up to a saturation value of about 24h; The absence of graphite reflections in X-ray diffract grams for longer milling times.