| 摘要 |
A particulate 100 comprises a particulate body 102 formed from a particulate material and a coating formed from carbonaceous material 110, wherein the coating has a reflectivity that is lower than a reflectivity of the particulate material. The particulate body preferably includes a metallic material, may include at least one of aluminium, copper, nickel, iron, titanium, molybdenum or a ceramic, and most preferably includes copper and phosphorus. The carbonaceous material preferably includes graphene or carbon nanotubes or both. A method of making a particulate 100 comprises the steps of receiving a particulate body (100, figure 3) in a chemical vapour deposition reactor (300) and flowing a hydrocarbon gas (320) into the reactor. The particulate formed by the method may be received in an additive manufacturing apparatus and fused into a layer of an article using a high density energy source. Also disclosed is a metallic-carbon composite conductor including the particulate of the invention and fused using an additive manufacturing technique and an article including a metal-carbon composite wherein at least one of resistivity, thermal conductivity and mechanical strength of the composite are superior to that of an article formed using the metal. |
