Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear

Baig, Z. and Mamat, O. and Mustapha, M. and Mumtaz, A. and Ali, S. and Sarfraz, M. (2018) Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear. International Journal of Minerals, Metallurgy and Materials, 25 (6). pp. 704-715.

Full text not available from this repository.
Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

The exceptional properties of graphene make it ideal as a reinforcement to enhance the properties of aluminum matrices and this critically depends on uniform dispersion. In this study, the dispersion issue was addressed by sonication and non-covalent surface functionalization of graphite nanoplatelets (GNPs) using two types of surfactant: anionic (sodium dodecyl benzene sulfate (SDBS)) and non-ionic polymeric (ethyl cellulose (EC)). After colloidal mixing with Al powder, consolidation was performed at two sintering temperatures (550 and 620°C). The structure, density, mechanical and wear properties of the nanocomposite samples were investigated and compared with a pure Al and a pure GNPs/Al nanocomposite sample. Noticeably, EC-based 0.5wt GNPs/Al samples showed the highest increment of 31 increase in hardness with reduced wear rate of 98.25 at 620°C, while a 22 increase in hardness with reduced wear rate of 96.98 at 550°C was observed, as compared to pure Al. Microstructural analysis and the overall results validate the use of EC-based GNPs/Al nanocomposites as they performed better than pure Al and pure GNPs/Al nanocomposite at both sintering temperatures. © 2018, University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature.

Item Type: Article
Impact Factor: cited By 0
Uncontrolled Keywords: Aluminum; Dispersion (waves); Dispersions; Graphite; Hardness; Nanocomposites; Reinforcement; Sodium dodecyl sulfate; Sulfur compounds; Surface active agents, Graphite nanoplatelets (GNPs); Microstructural analysis; Nanocomposite samples; Sintering effect; Sintering temperatures; Surface Functionalization; Ultra-sonication; Uniform dispersions, Sintering, Aluminum; Dispersions; Graphite; Hardness; Reinforcement; Sulfur Compounds
Depositing User: Mr Ahmad Suhairi Mohamed Lazim
Date Deposited: 26 Feb 2019 02:35
Last Modified: 26 Feb 2019 02:35
URI: http://scholars.utp.edu.my/id/eprint/20879

Actions (login required)

View Item
View Item