SiC content effect on the properties of Cu–SiC composites produced by mechanical alloying

The effect of type and ratio of reinforcement on the synthesis and characterization Cu-based nanocomposites by flake powder metallurgy

“…As 5 shown in Fig. 3, the amount of deformed particles decreases with increasing reinforcement 6 content. This can be attributed to the lubrication effect of the nanographite, grafen nanosheet 7 and carbon nanotube particles in the milling process.…”

“…As known, densification ability of milled 4 powders decreases with increasing work hardening and hence powder hardness. Therefore, a 5 novel process which called flake powder metallurgy (FPM) has been developed in order to 6 enhance and improve the properties of metal matrix composites produced by powder 7 metallurgy method [24]. 8 It is understand from a review of this literature that the addition of ceramic particles to a metal 9 matrix results in improved hardness but significantly decreased electrical conductivity.…”

“…Thermal chemical vapor deposition method has been used for the 2 production of the multilayer graphene and carbon nanotube particles by Graphene Company. The typical flake powder metallurgy method for metal matrix composite or nanocomposites 6 involves different stages: (1) the synthesis of flake matrix powders, (2) the production of 7 composite powders and (3) consolidation process. The first and second step is successfully 8 combined in this study.…”

“…The 3 friction which occurs during the particle rearrangement decreases due to embedding 4 reinforcement particles and so the apparent density of Cu-based nanocomposite powders 5 increases up to 2.5 wt.% of reinforcement content. However, sufficient surface area for 6 embedding process was not provided on the flake Cu matrix powders after 2.5 wt.% of 7 reinforcement content and particle rearrangement was denied by reinforcement particles. 8 Therefore, the apparent density of Cu-nanographite, Cu-graphene nanosheet and Cu-Carbon 9 nanotube powders decreased after 2.5 wt.% of reinforcement content.…”

“…9 shows the effect of the reinforcement content on the electrical conductivity of the green6 Cu-based nanocomposites. The electrical conductivity of green Cu-based nanocomposites 7 shows a decrease with the increase of reinforcement content from 0.5 to 5 wt.%.…”