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Published in: Journal of Materials Science 18/2022

14-03-2022 | Advanced Nanomaterials

Graphene reinforced aluminum nanocomposites: synthesis, characterization and properties

Authors: Binod Bihari Palei, Tapan Dash, Susanta Kumar Biswal

Published in: Journal of Materials Science | Issue 18/2022

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Abstract

Novel composites of Al–graphene (0.1–0.3 wt%) have been prepared by powder metallurgical processing. Powder composites were prepared by planetary ball milling route in toluene medium by 5 h of milling under inert atmosphere. Then, optimized high density compacted samples (prepared at 120 MPa) were sintered at 550 °C for 5 h. Various characterization of composites was done by using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy, energy-dispersive spectroscopy (EDS), transmission electron microscope, high-resolution transmission electron microscope (HRTEM), selected area diffraction pattern (SAED), micro-Raman spectroscopy, electrical conductivity, and microhardness to obtain an Al–graphene composite with improved microhardness and electrical conductivity. Graphene was found in bi-layer form in the typical sample aluminum–graphene (0.2 wt%) composite. Purity of samples confirmed from EDS analysis showing only peaks of Al and C. XRD, XPS, HRTEM, and SAED studies establish the successful formation of Al and graphene composite. The typical aluminum–graphene (0.2 wt%) sample show significantly higher electrical conductivity (59.2 × 106 S/m) and microhardness (165 ± 08 VHN) values than that of pure aluminum, which shows electrical conductivity and microhardness values of 38.0 × 106 S/m and 65 ± 05 VHN, respectively. The results further advance electrical as well as structural, industrial applications of aluminum.

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Metadata
Title
Graphene reinforced aluminum nanocomposites: synthesis, characterization and properties
Authors
Binod Bihari Palei
Tapan Dash
Susanta Kumar Biswal
Publication date
14-03-2022
Publisher
Springer US
Published in
Journal of Materials Science / Issue 18/2022
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-022-07043-9

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