通过将两种活性剂混合使用,不仅改善了石墨的分散性能,同时提高了铜对石墨表面的镀覆效果,使颗粒很小的石墨也能被铜所均匀镀覆。实验表明,活性剂的浓度和配比对铜的镀覆效果具有显著的影响。本文还分析了这种铜镀石墨粉末及其烧结材料的金相结构,解释了材料的高导电性的原因。 By mixing the two active agents, not only the dispersion performance of the graphite is improved, but also the plating effect of the copper on the surface of the graphite is improved, and the graphite with a very small particle size can also be uniformly coated by the copper. Experiments show that the active agent concentration and the ratio of copper plating effect has a significant impact. This paper also analyzes the metallographic structure of this copper-coated graphite powder and its sintered material, explains the reasons for the high conductivity of the material.