Abstract：The RGO-Ni/Cu composites was prepared by electrostatic self-assembly, ball milling, and powder metallurgy
to solve the problem of graphene structure damage in the ball milling. The effects of milling time on the
morphology of the RGO-Ni/Cu powders and the microstructures、electrical conductivity、vickers hardness and antifriction
performance of the RGO-Ni/Cu composite were studied. The results show that the morphology of the RGONi/
Cu powders changes from agglomerated to lamellar and then to fragmented with increasing the milling time,
while the RGO-Ni powders of the two-dimensional wrinkles shape still retaining. The decentralized form of the
RGO-Ni phase in the RGO-Ni/Cu composites is transformed from agglomerate distribution to stripe distribution
with the increasing of milling time. The RGO-Ni/Cu composite has the best comprehensive properties at the milling
time of 4 h and the coefficient of friction (COF) is 0.456. The wear mechanism of RGO-Ni/Cu composites is
related to the formation degree of the graphene lubrication film. The formation of graphene lubricating film is
affected by the relative density of the RGO-Ni/Cu composites.
闫贞，姜凤阳，付翀，王金龙，刘鑫，张思瑶. 球磨时间对RGO-Ni/Cu 粉体形貌及复合材料性能的影响[J]. 粉末冶金工业, 2023, 33(01): 60-66.
YAN Zhen，JIANG Fengyang，FU Chong，WANG Jinlong，LIU Xin，ZHANG Siyao. Effect of ball milling time on the powder morphology and properties of the RGO-Ni/Cu composites. Powder Metallurgy Industry, 2023, 33(01): 60-66.
2023, Vol. 33 
