METHOD FOR PREPARING NANOMETER OXIDE PARTICLE REINFORCED METAL COMPOSITE MATERIAL

摘要

A method for preparing a nanometer oxide particle reinforced metal composite material, comprising: mixing alloy powder and a surfactant, and performing ball milling to obtain flaky alloy powder; placing the flaky alloy powder in a dry air atmosphere, heating to 300-500°C for undergoing internal oxidation for 10-60 min to obtain the nanometer oxide particle reinforced metal composite material. The method is simple in operation and does not require a high-pressure oxygen furnace; compared with a conventional internal oxidation method, the oxidation temperature is lower, the oxidation time is shorter, and the production costs are reduced; without using expensive nanometer powder as a raw material, nanoscale oxide is prepared, and is uniformly dispersed in the metal, so that the effect of reinforcing the metal by means of nanoparticle oxide is achieved; moreover, production of a surface pure metal layer affecting the material properties, such as a silver layer, is avoided.