Processing of carbon nanotube reinforced Cu-Cr nanocomposite powder by mechanical milling

In this study Cu-Cr based nanocomposite containing carbon nanotubes (CNTs) were fabricated by mechanicalalloying. Lattice parameter evolutions were evaluated by X-ray diffraction technique, and 40 hours milling time waschosen as the best time for Cu-Cr solid solution formation. CNTs as the second reinforcement were milled with Cu-Cralloy up to 45 and 50 hours. Effect of CNTs on the microstructure of Cu-Cr was characterized by field emission scanningelectron microscopy. It was found that the presence of carbon nanotubes was beneficial to decrease of particle size. Theaverage crystallite size of final nanocomposite was 40 nm.

کلیدواژه ها:

Nanocomposites ، Mechanical milling ، Copper ، Carbon nanotubes