Production and Characterization of Cu-rGO Nanocomposites via. a Combination of Molecular Level Mixing and Semi-Powder Metallurgy Routes
Paper ID : 1392-ICNS
Authors:
Negar Fahimi *1, Parvin Abachi2
1Department of Material Science & Engineering, Sharif University of Technology, Tehran, Iran
2Department of Material Science and Engineering, Sharif University of Technology, Tehran, Iran
Abstract:
Cu/rGO nanocomposites were produced using a combination of molecular-level mixing and semi-powder metallurgy routes. GO nanoplates were decorated with reduced copper ions in order to improve dispersion. The resulted composite powder was then reduced in H2 atmosphere to form Cu-GNP powder. During the subsequent semi-powder metallurgy stage, the Cu-CuO/GO nanocomposite powder particles were combined with copper powder particles through wet mixing. Initial amounts of GO nanoplates were selected in the range of 0-4vol.% (0-1 wt.%). To preserve fine matrix grains during sintering, consolidation was performed using spark plasma sintering (SPS). The morphology, functional group types and qualification of GO nanoplates and Cu/rGO nanocomposite powders were examined using FE-SEM, FTIR, respectively. FESEM images showing morphology observations of Cu/rGO nanocomposites showed in some extent homogeneous dispersion of reinforcement which can be mainly attributed to the proper processing route. Density measurements, conducted via the Archimedes method and revealed the effect of GO vol.% on density values.
Keywords:
Cu/G nanocomposites, molecular-level mixing, semi-powder metallurgy
Status : Abstract Accepted (Poster Presentation)